Byzantine Empire: Difference between revisions

Roman Empire
Βασιλεία Ῥωμαίων
*Basileía Rhōmaíōn*^a
*Imperium Romanum*
Roman Empire Βασιλεία Ῥωμαίων; Basileía Rhōmaíōna; Imperium Romanum
330–1453c
	Tremissis with the image of Justinian the Great; (r. 527–565) (see Byzantine insignia)
	The Empire at its greatest extent in AD 555 under; Justinian the Great (its vassals in pink)
Status	Eastern division of the Roman Empire; (395–480)b
Capital	Nicomedia; (286–330); Constantinoplec; (330–1204, 1261–1453)
Common languages	Latin (official until 610); Greek (official after 610);
Religion	Christianity (Eastern Orthodox); (tolerated after the Edict of Milan in 313; state religion after 380)
Government	Republican monarchy
Notable emperors
• 324–337	Constantine the Great
• 395–408	Arcadius
• 527–565	Justinian I
• 610–641	Heraclius
• 717–741	Leo III
• 976–1025	Basil II
• 1081–1118	Alexios I Komnenos
• 1259–1282	Michael VIII Palaiologos
• 1449–1453	Constantine XI
Historical era	Late Antiquity to Late Middle Ages
• Partition of the Roman Empire	293
• Founding of Constantinople	330
• Death of Theodosius I	395
• Nominal end of the Western Roman Empire	476
• Fourth Crusade; establishment of Latin Empire	1204
• Reconquest of Constantinople by Palaiologos	1261
• Fall of Constantinople	29 May 1453
• Fall of Trebizond	15 August 1461
Population
• 565 AD	26,000,000d
• 780 AD	7,000,000
• 1025 AD	12,000,000
Currency	Solidus, histamenon and hyperpyron
Preceded by	Succeeded by
	Roman Empire
Ottoman Empire
	^ Βασιλεία Ῥωμαίων may be transliterated in Latin as Basileia Rhōmaiōn, meaning Roman Empire.; ^ Theodosius I was the last emperor to rule over both the Eastern and Western Roman Empire. He died in 395 AD after making Christianity the official religion of the empire.; ^ Between 1204 and 1261 there was an interregnum when the Empire was divided into the Empire of Nicaea, the Empire of Trebizond and the Despotate of Epirus, which were all contenders for rule of the Empire. The Empire of Nicaea is considered the legitimate continuation of the Byzantine Empire because they managed to re-take Constantinople.; ^ See Population of the Byzantine Empire for more detailed figures taken provided by McEvedy and Jones, Atlas of World Population History, 1978, as well as Angeliki E. Laiou, The Economic History of Byzantium, 2002.;

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The Byzantine Empire, also referred to as the Eastern Roman Empire, was the continuation of the Roman Empire in the East during Late Antiquity and the Middle Ages, when its capital city was Constantinople (modern-day Istanbul, which had been founded as Byzantium). It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453.^[2] During most of its existence, the empire was the most powerful economic, cultural, and military force in Europe. Both "Byzantine Empire" and "Eastern Roman Empire" are historiographical terms created after the end of the realm; its citizens continued to refer to their empire as the Roman Empire (Template:Lang-el, tr. Basileia tôn Rhōmaiōn; Template:Lang-la),^[3] or Romania (Ῥωμανία), and to themselves as "Romans."^[4]

Several signal events from the 4th to 6th centuries mark the period of transition during which the Roman Empire's Greek East and Latin West divided. Constantine I (r. 324–337) reorganised the empire, made Constantinople the new capital, and legalised Christianity. Under Theodosius I (r. 379–395), Christianity became the Empire's official state religion and other religious practices were proscribed. Finally, under the reign of Heraclius (r. 610–641), the Empire's military and administration were restructured and adopted Greek for official use instead of Latin.^[5] Thus, although the Roman state continued and Roman state traditions were maintained, modern historians distinguish Byzantium from ancient Rome insofar as it was centred on Constantinople, oriented towards Greek rather than Latin culture, and characterised by Orthodox Christianity.^[4]

The borders of the empire evolved significantly over its existence, as it went through several cycles of decline and recovery. During the reign of Justinian I (r. 527–565), the Empire reached its greatest extent after reconquering much of the historically Roman western Mediterranean coast, including North Africa, Italy, and Rome itself, which it held for two more centuries. During the reign of Maurice (r. 582–602), the Empire's eastern frontier was expanded and the north stabilised. However, his assassination caused the Byzantine–Sasanian War of 602–628, which exhausted the empire's resources and contributed to major territorial losses during the Early Muslim conquests of the seventh century. In a matter of years the empire lost its richest provinces, Egypt and Syria, to the Arabs.^[6]

During the Macedonian dynasty (10th–11th centuries), the empire again expanded and experienced the two-century long Macedonian Renaissance, which came to an end with the loss of much of Asia Minor to the Seljuk Turks after the Battle of Manzikert in 1071. This battle opened the way for the Turks to settle in Anatolia.

The empire recovered again during the Komnenian restoration, such that by the 12th century Constantinople was the largest and wealthiest European city.^[7] However, it was delivered a mortal blow during the Fourth Crusade, when Constantinople was sacked in 1204 and the territories that the empire formerly governed were divided into competing Byzantine Greek and Latin realms. Despite the eventual recovery of Constantinople in 1261, the Byzantine Empire remained only one of several small rival states in the area for the final two centuries of its existence. Its remaining territories were progressively annexed by the Ottomans over the 14th and 15th century. The Fall of Constantinople to the Ottoman Empire in 1453 finally ended the Byzantine Empire.^[8] The last of the imperial Byzantine successor states, the Empire of Trebizond, would be conquered by the Ottomans eight years later in the 1461 Siege of Trebizond.^[9]

Nomenclature

The first use of the term "Byzantine" to label the later years of the Roman Empire was in 1557, when the German historian Hieronymus Wolf published his work Corpus Historiæ Byzantinæ, a collection of historical sources. The term comes from "Byzantium", the name of the city of Constantinople before it became Constantine's capital. This older name of the city would rarely be used from this point onward except in historical or poetic contexts. The publication in 1648 of the Byzantine du Louvre (Corpus Scriptorum Historiae Byzantinae), and in 1680 of Du Cange's Historia Byzantina further popularised the use of "Byzantine" among French authors, such as Montesquieu.^[10] However, it was not until the mid-19th century that the term came into general use in the Western world.^[11]

The Byzantine Empire was known to its inhabitants as the "Roman Empire", the "Empire of the Romans" (Latin: Imperium Romanum, Imperium Romanorum; Greek: Βασιλεία τῶν Ῥωμαίων Basileia tōn Rhōmaiōn, Ἀρχὴ τῶν Ῥωμαίων Archē tōn Rhōmaiōn), "Romania" (Latin: Romania; Greek: Ῥωμανία Rhōmania),^{[n 1]} the "Roman Republic" (Latin: Res Publica Romana; Greek: Πολιτεία τῶν Ῥωμαίων Politeia tōn Rhōmaiōn), "Graecia" (Greek: Γραικία),^[14] and also as "Rhōmais" (Greek: Ῥωμαΐς).^[15] The inhabitants called themselves Romaioi and Graikoi,^[16] and even as late as the 19th century Greeks typically referred to modern Greek as Romaika and Graikika.

Although the Byzantine Empire had a multi-ethnic character during most of its history^[17] and preserved Romano-Hellenistic traditions,^[18] it became identified by its western and northern contemporaries with its increasingly predominant Greek element.^[19] The occasional use of the term "Empire of the Greeks" (Latin: Imperium Graecorum) in the West to refer to the Eastern Roman Empire and of the Byzantine Emperor as Imperator Graecorum (Emperor of the Greeks)^[20] were also used to separate it from the prestige of the Roman Empire within the new kingdoms of the West.^[21]

The authority of the Byzantine emperor as the legitimate Roman emperor was challenged by the coronation of Charlemagne as Imperator Augustus by Pope Leo III in the year 800. Needing Charlemagne's support in his struggle against his enemies in Rome, Leo used the lack of a male occupant of the throne of the Roman Empire at the time to claim that it was vacant and that he could therefore crown a new Emperor himself.^[22]

No such distinction existed in the Islamic and Slavic worlds, where the Empire was more straightforwardly seen as the continuation of the Roman Empire. In the Islamic world, the Roman Empire was known primarily as Rûm.^[23] The name millet-i Rûm, or "Roman nation," was used by the Ottomans through the 20th century to refer to the former subjects of the Byzantine Empire, that is, the Orthodox Christian community within Ottoman realms.

History

Early history

The Roman army succeeded in conquering many territories covering the entire Mediterranean region and coastal regions in southwestern Europe and north Africa. These territories were home to many different cultural groups, both urban populations and rural populations. Generally speaking, the eastern Mediterranean provinces were more urbanised than the western, having previously been united under the Macedonian Empire and Hellenised by the influence of Greek culture.^[25]

The West also suffered more heavily from the instability of the 3rd century AD. This distinction between the established Hellenised East and the younger Latinised West persisted and became increasingly important in later centuries, leading to a gradual estrangement of the two worlds.^[25]

Decentralization of power

To maintain control and improve administration, various schemes to divide the work of the Roman Emperor by sharing it between individuals were tried between 286 and 324, from 337 to 350, from 364 to 392, and again between 395 and 480. Although the administrative subdivisions varied, they generally involved a division of labour between East and West. Each division was a form of power-sharing (or even job-sharing), for the ultimate imperium was not divisible and therefore the empire remained legally one state—although the co-emperors often saw each other as rivals or enemies.

In 293, emperor Diocletian created a new administrative system (the tetrarchy), to guarantee security in all endangered regions of his Empire. He associated himself with a co-emperor (Augustus), and each co-emperor then adopted a young colleague given the title of Caesar, to share in their rule and eventually to succeed the senior partner. The tetrarchy collapsed, however, in 313 and a few years later Constantine I reunited the two administrative divisions of the Empire as sole Augustus.^[26]

Recentralisation

In 330, Constantine moved the seat of the Empire to Constantinople, which he founded as a second Rome on the site of Byzantium, a city strategically located on the trade routes between Europe and Asia and between the Mediterranean and the Black Sea. Constantine introduced important changes into the Empire's military, monetary, civil and religious institutions. As regards his economic policies in particular, he has been accused by certain scholars of "reckless fiscality", but the gold solidus he introduced became a stable currency that transformed the economy and promoted development.^[27]

Under Constantine, Christianity did not become the exclusive religion of the state, but enjoyed imperial preference, because the emperor supported it with generous privileges. Constantine established the principle that emperors could not settle questions of doctrine on their own, but should summon instead general ecclesiastical councils for that purpose. His convening of both the Synod of Arles and the First Council of Nicaea indicated his interest in the unity of the Church, and showcased his claim to be its head.^[28] The rise of Christianity was briefly interrupted on the accession of the emperor Julian in 361, who made a determined effort to restore polytheism throughout the empire and was thus dubbed "Julian the Apostate" by the Church.^[29] However this was reversed when Julian was killed in battle in 363.^[30]

Theodosius I (379–395) was the last Emperor to rule both the Eastern and Western halves of the Empire. In 391 and 392 he issued a series of edicts essentially banning pagan religion. Pagan festivals and sacrifices were banned, as was access to all pagan temples and places of worship.^[31] The last Olympic Games are believed to have been held in 393.^[32] In 395, Theodosius I bequeathed the imperial office jointly to his sons: Arcadius in the East and Honorius in the West, once again dividing Imperial administration. In the 5th century the Eastern part of the empire was largely spared the difficulties faced by the West—due in part to a more established urban culture and greater financial resources, which allowed it to placate invaders with tribute and pay foreign mercenaries. This success allowed Theodosius II to focus on the codification of Roman law and further fortification of the walls of Constantinople, which left the city impervious to most attacks until 1204.^[33] Large portions of the Theodosian Walls are preserved to the present day.

To fend off the Huns, Theodosius had to pay an enormous annual tribute to Attila. His successor, Marcian, refused to continue to pay the tribute, but Attila had already diverted his attention to the West. After Attila's death in 453, the Hunnic Empire collapsed, and many of the remaining Huns were often hired as mercenaries by Constantinople.^[34]

Loss of the Western Roman Empire

After the fall of Attila, the Eastern Empire enjoyed a period of peace, while the Western Empire deteriorated due to continuing migration and expansion by the Germanic nations (its end is usually dated in 476 when the Germanic Roman general Odoacer deposed the usurper Western Emperor Romulus Augustulus.^[35]).

In 480 with the death of the Western Emperor Julius Nepos, Eastern Emperor Zeno became sole Emperor of the empire. Odoacer, now ruler of Italy, was nominally Zeno's subordinate but acted with complete autonomy, eventually providing support to a rebellion against the Emperor.^[36]

Anastasius 40 *nummi* (M) and 5 *nummi* (E)

Zeno negotiated with the invading Ostrogoths, who had settled in Moesia, convincing the Gothic king Theodoric to depart for Italy as magister militum per Italiam ("commander in chief for Italy") with the aim of deposing Odoacer. By urging Theodoric to conquer Italy, Zeno rid the Eastern Empire of an unruly subordinate (Odoacer) and moved another (Theodoric) further from the heart of the Empire. After Odoacer's defeat in 493, Theodoric ruled Italy de facto, although he was never recognised by the eastern emperors as "king" (rex).^[36]

In 491, Anastasius I, an aged civil officer of Roman origin, became Emperor, but it was not until 497 that the forces of the new emperor effectively took the measure of Isaurian resistance.^[37] Anastasius revealed himself as an energetic reformer and an able administrator. He introduced a new coinage system of the copper follis, the coin used in most everyday transactions.^[38] He also reformed the tax system and permanently abolished the chrysargyron tax. The State Treasury contained the enormous sum of 320,000 lb (150,000 kg) of gold when Anastasius died in 518.^[39]

Justinian dynasty

The Justinian dynasty was founded by Justin I, who though illiterate, rose through the ranks of the military to become Emperor in 518.^[40] He was succeeded by his nephew Justinian I in 527, who may already have exerted effective control during Justin's reign.^[41] One of the most important figures of late antiquity and possibly the last Roman emperor to speak Latin as a first language,^[42] Justinian's rule constitutes a distinct epoch, marked by the ambitious but only partly realized renovatio imperii, or "restoration of the Empire".^[43] His wife Theodora was particularly influential.^[44]

In 529, Justinian appointed a ten-man commission chaired by John the Cappadocian to revise Roman law and create a new codification of laws and jurists' extracts, known as the "Corpus Juris Civilis"or the Justinian Code. In 534, the Corpus was updated and, along with the enactments promulgated by Justinian after 534, formed the system of law used for most of the rest of the Byzantine era.^[45] The Corpus forms the basis of civil law of many modern states.^[46]

In 532, attempting to secure his eastern frontier, Justinian signed a peace treaty with Khosrau I of Persia, agreeing to pay a large annual tribute to the Sassanids. In the same year, he survived a revolt in Constantinople (the Nika riots), which solidified his power but ended with the deaths of a reported 30,000 to 35,000 rioters on his orders.^[47] The western conquests began in 533, as Justinian sent his general Belisarius to reclaim the former province of Africa from the Vandals, who had been in control since 429 with their capital at Carthage.^[48] Their success came with surprising ease, but it was not until 548 that the major local tribes were subdued.^[49] In Ostrogothic Italy, the deaths of Theodoric, his nephew and heir Athalaric, and his daughter Amalasuntha had left her murderer, Theodahad (r. 534–536), on the throne despite his weakened authority.^[50]

In 535, a small Byzantine expedition to Sicily met with easy success, but the Goths soon stiffened their resistance, and victory did not come until 540, when Belisarius captured Ravenna, after successful sieges of Naples and Rome.^[50] In 535–536, Theodahad sent Pope Agapetus I to Constantinople to request the removal of Byzantine forces from Sicily, Dalmatia, and Italy. Although Agapetus failed in his mission to sign a peace with Justinian, he succeeded in having the Monophysite Patriarch Anthimus I of Constantinople denounced, despite empress Theodora's support and protection.^[51]

The Ostrogoths were soon reunited under the command of King Totila and captured Rome in 546. Belisarius, who had been sent back to Italy in 544, was eventually recalled to Constantinople in 549.^[52] The arrival of the Armenian eunuch Narses in Italy (late 551) with an army of 35,000 men marked another shift in Gothic fortunes. Totila was defeated at the Battle of Taginae and his successor, Teia, was defeated at the Battle of Mons Lactarius (October 552). Despite continuing resistance from a few Gothic garrisons and two subsequent invasions by the Franks and Alemanni, the war for the Italian peninsula was at an end.^[53] In 551, Athanagild, a noble from Visigothic Hispania, sought Justinian's help in a rebellion against the king, and the emperor dispatched a force under Liberius, a successful military commander. The empire held on to a small slice of the Iberian Peninsula coast until the reign of Heraclius.^[54]

In the east, the Roman–Persian Wars continued until 561 when the envoys of Justinian and Khosrau agreed on a 50-year peace.^[55] By the mid-550s, Justinian had won victories in most theatres of operation, with the notable exception of the Balkans, which were subjected to repeated incursions from the Slavs and the Gepids. Tribes of Serbs and Croats were later resettled in the northwestern Balkans, during the reign of Heraclius.^[56] Justinian called Belisarius out of retirement and defeated the new Hunnish threat. The strengthening of the Danube fleet caused the Kutrigur Huns to withdraw and they agreed to a treaty that allowed safe passage back across the Danube.^[57]

Although polytheism had been suppressed by the state since at least the time of Constantine in the 4th century, traditional Greco-Roman culture was still influential in the Eastern empire in the 6th century.^[58] Philosophers such as John Philoponus drew on neoplatonic ideas in addition to Christian thought and empiricism. Nevertheless, Hellenistic philosophy began to be gradually supplanted by or amalgamated into newer Christian philosophy. The closure of the Platonic Academy in 529 was a notable turning point.^[59] Hymns written by Romanos the Melodist marked the development of the Divine Liturgy, while the architects Isidore of Miletus and Anthemius of Tralles worked to complete the new Church of the Holy Wisdom, Hagia Sophia, which was designed to replace an older church destroyed during the Nika Revolt. Completed in 537, the Hagia Sophia stands today as one of the major monuments of Byzantine architectural history.^[60] During the 6th and 7th centuries, the Empire was struck by a series of epidemics, which greatly devastated the population and contributed to a significant economic decline and a weakening of the Empire.^[61]

After Justinian died in 565, his successor, Justin II, refused to pay the large tribute to the Persians. Meanwhile, the Germanic Lombards invaded Italy; by the end of the century, only a third of Italy was in Byzantine hands. Justin's successor, Tiberius II, choosing between his enemies, awarded subsidies to the Avars while taking military action against the Persians. Though Tiberius' general, Maurice, led an effective campaign on the eastern frontier, subsidies failed to restrain the Avars. They captured the Balkan fortress of Sirmium in 582, while the Slavs began to make inroads across the Danube.^[62]

Maurice, who meanwhile succeeded Tiberius, intervened in a Persian civil war, placed the legitimate Khosrau II back on the throne, and married his daughter to him. Maurice's treaty with his new brother-in-law enlarged the territories of the Empire to the East and allowed the energetic Emperor to focus on the Balkans. By 602, a series of successful Byzantine campaigns had pushed the Avars and Slavs back across the Danube.^[62] However, Maurice's refusal to ransom several thousand captives taken by the Avars, and his order to the troops to winter in the Danube, caused his popularity to plummet. A revolt broke out under an officer named Phocas, who marched the troops back to Constantinople; Maurice and his family were murdered while trying to escape.^[63]

Shrinking borders

Early Heraclian dynasty

After Maurice's murder by Phocas, Khosrau used the pretext to reconquer the Roman province of Mesopotamia.^[64] Phocas, an unpopular ruler invariably described in Byzantine sources as a "tyrant", was the target of a number of Senate-led plots. He was eventually deposed in 610 by Heraclius, who sailed to Constantinople from Carthage with an icon affixed to the prow of his ship.^[65]

Following the accession of Heraclius, the Sassanid advance pushed deep into the Levant, occupying Damascus and Jerusalem and removing the True Cross to Ctesiphon.^[66] The counter-attack launched by Heraclius took on the character of a holy war, and an acheiropoietos image of Christ was carried as a military standard^[67] (similarly, when Constantinople was saved from a combined Avar–Sassanid–Slavic siege in 626, the victory was attributed to the icons of the Virgin that were led in procession by Patriarch Sergius about the walls of the city).^[68] In this very siege of Constantinople of the year 626, amidst the climactic Byzantine–Sasanian War of 602–628, the combined Avar, Sassanid, and Slavic forces unsuccessfully besieged the Byzantine capital between June and July. After this, the Sassanid army was forced to withdraw to Anatolia. The loss came just after news had reached them of yet another Byzantine victory, where Heraclius's brother Theodore scored well against the Persian general Shahin.^[69] Following this, Heraclius led an invasion into Sassanid Mesopotamia once again.

The Byzantine Empire in 650 – Because of the Byzantine–Sasanian War of 602–628 both Byzantines and Persians exhausted themselves and made them vulnerable for the expansion of the Caliphate. In 650 the Byzantine Empire had lost all of its southern provinces except the Exarchate of Africa to the Caliphate. At the same time the Slavs laid pressure and settled in the Balkan.

The main Sassanid force was destroyed at Nineveh in 627, and in 629 Heraclius restored the True Cross to Jerusalem in a majestic ceremony,^[70] as he marched into the Sassanid capital of Ctesiphon, where anarchy and civil war reigned as a result of the enduring war. Eventually, the Persians were obliged to withdraw all armed forces and return Sassanid-ruled Egypt, the Levant and whatever imperial territories of Mesopotamia and Armenia were in Roman hands at the time of an earlier peace treaty in c. 595. The war had exhausted both the Byzantines and Sassanids, however, and left them extremely vulnerable to the Muslim forces that emerged in the following years.^[71] The Byzantines suffered a crushing defeat by the Arabs at the Battle of Yarmouk in 636, while Ctesiphon fell in 637.^[72]

The First Arab Siege of Constantinople (674–678) and the theme system

Greek fire was first used by the Byzantine Navy during the Byzantine–Arab Wars (from the Madrid Skylitzes, Biblioteca Nacional de España, Madrid).

The Arabs, now firmly in control of Syria and the Levant, sent frequent raiding parties deep into Asia Minor, and in 674–678 laid siege to Constantinople itself. The Arab fleet was finally repulsed through the use of Greek fire, and a thirty-years' truce was signed between the Empire and the Umayyad Caliphate.^[73] However, the Anatolian raids continued unabated, and accelerated the demise of classical urban culture, with the inhabitants of many cities either refortifying much smaller areas within the old city walls, or relocating entirely to nearby fortresses.^[74] Constantinople itself dropped substantially in size, from 500,000 inhabitants to just 40,000–70,000, and, like other urban centres, it was partly ruralised. The city also lost the free grain shipments in 618, after Egypt fell first to the Persians and then to the Arabs, and public wheat distribution ceased.^[75]

The void left by the disappearance of the old semi-autonomous civic institutions was filled by the system called Theme (Byzantine district), which entailed dividing Asia Minor into "provinces" occupied by distinct armies that assumed civil authority and answered directly to the imperial administration. This system may have had its roots in certain ad hoc measures taken by Heraclius, but over the course of the 7th century it developed into an entirely new system of imperial governance.^[76] The massive cultural and institutional restructuring of the Empire consequent on the loss of territory in the 7th century has been said to have caused a decisive break in east Mediterranean Romanness and that the Byzantine state is subsequently best understood as another successor state rather than a real continuation of the Roman Empire.^[77]

Late Heraclian dynasty

The withdrawal of large numbers of troops from the Balkans to combat the Persians and then the Arabs in the east opened the door for the gradual southward expansion of Slavic peoples into the peninsula, and, as in Asia Minor, many cities shrank to small fortified settlements.^[78] In the 670s, the Bulgars were pushed south of the Danube by the arrival of the Khazars. In 680, Byzantine forces sent to disperse these new settlements were defeated.^[79]

In 681, Constantine IV signed a treaty with the Bulgar khan Asparukh, and the new Bulgarian state assumed sovereignty over a number of Slavic tribes that had previously, at least in name, recognised Byzantine rule.^[79] In 687–688, the final Heraclian emperor, Justinian II, led an expedition against the Slavs and Bulgarians, and made significant gains, although the fact that he had to fight his way from Thrace to Macedonia demonstrates the degree to which Byzantine power in the north Balkans had declined.^[80]

Justinian II attempted to break the power of the urban aristocracy through severe taxation and the appointment of "outsiders" to administrative posts. He was driven from power in 695, and took shelter first with the Khazars and then with the Bulgarians. In 705, he returned to Constantinople with the armies of the Bulgarian khan Tervel, retook the throne, and instituted a reign of terror against his enemies. With his final overthrow in 711, supported once more by the urban aristocracy, the Heraclian dynasty came to an end.^[81]

The Second Arab Siege of Constantinople (717–718) and the Isaurian dynasty

The Byzantine Empire at the accession of Leo III, c. 717. Striped area indicates land raided by the Arabs.

In 717 the Umayyad Caliphate launched the Siege of Constantinople (717–718) which lasted for one year. But with Leo III the Isaurian's military genius, the invention Greek Fire, a cold winther in 717-18, and the Byzantines' diplomacy with the Khan Tervel of Bulgaria made the Byzantine Empire to defeat the Umayyad Caliphate. The Umayyads lost prestige and their best figters as well which eventually resulted into unrest. After Leo III the Isaurian turned back the Muslim assault in 718, he addressed himself to the task of reorganising and consolidating the themes in Asia Minor. In 740 a major Byzantine victory found place at the Battle of Akroinon where the Byzantines destroyed the Arab Umayyad army once again.

Leo III the Isaurian's son and successor, Constantine V, won noteworthy victories in northern Syria and also thoroughly undermined Bulgarian strength.^[82] In 746, profiting by the unstable conditions in the Umayyad Caliphate, which was falling apart under Marwan II, Constantine V invaded Syria and captured Germanikeia. Coupled with military defeats on the other fronts of the overextended Caliphate and internal instability, the age of Arab expansion came to an end, and the Muslim world was divided not to be united again.

Religious dispute over iconoclasm

The 8th and early 9th centuries were also dominated by controversy and religious division over Iconoclasm, which was the main political issue in the Empire for over a century. Icons (here meaning all forms of religious imagery) were banned by Leo and Constantine from around 730, leading to revolts by iconodules (supporters of icons) throughout the empire. After the efforts of empress Irene, the Second Council of Nicaea met in 787 and affirmed that icons could be venerated but not worshiped. Irene is said to have endeavoured to negotiate a marriage between herself and Charlemagne, but, according to Theophanes the Confessor, the scheme was frustrated by Aetios, one of her favourites.^[83]

In the early 9th century, Leo V reintroduced the policy of iconoclasm, but in 843 empress Theodora restored the veneration of icons with the help of Patriarch Methodios.^[84] Iconoclasm played a part in the further alienation of East from West, which worsened during the so-called Photian schism, when Pope Nicholas I challenged the elevation of Photios to the patriarchate.^[85]

Macedonian dynasty and resurgence (867–1025)

The accession of Basil I to the throne in 867 marks the beginning of the Macedonian dynasty, which would rule for the next two and a half centuries. This dynasty included some of the most able emperors in Byzantium's history, and the period is one of revival and resurgence. The Empire moved from defending against external enemies to reconquest of territories formerly lost.^[86]

In addition to a reassertion of Byzantine military power and political authority, the period under the Macedonian dynasty is characterised by a cultural revival in spheres such as philosophy and the arts. There was a conscious effort to restore the brilliance of the period before the Slavic and subsequent Arab invasions, and the Macedonian era has been dubbed the "Golden Age" of Byzantium.^[86] Though the Empire was significantly smaller than during the reign of Justinian, it had regained significant strength, as the remaining territories were less geographically dispersed and more politically, economically, and culturally integrated.

Wars against the Arabs

Taking advantage of the Empire's weakness after the Revolt of Thomas the Slav in the early 820s, the Arabs re-emerged and captured Crete. They also successfully attacked Sicily, but in 863 general Petronas gained a decisive victory against Umar al-Aqta, the emir of Melitene (Malatya). Under the leadership of emperor Krum, the Bulgarian threat also re-emerged, but in 815–816 Krum's son, Omurtag, signed a peace treaty with Leo V.^[87]

During the reign of Theophilos, the empire created the Byzantine beacon system.

In the 830s Abbasid Caliphate started military excursions culminating with a victory in the Sack of Amorium. The Byzantines then attacked back and sacked Damietta in Egypt. Later the Abbasid Caliphate responded by sending their troops into Anatolia again, sacking and marauding until they were eventually annihilated by the Byzantines in 863.

In the early years of Basil I's reign, Arab raids on the coasts of Dalmatia were successfully repelled, and the region once again came under secure Byzantine control. This enabled Byzantine missionaries to penetrate to the interior and convert the Serbs and the principalities of modern-day Herzegovina and Montenegro to Orthodox Christianity.^[88] An attempt to retake Malta ended disastrously, however, when the local population sided with the Arabs and massacred the Byzantine garrison.^[89]

By contrast, the Byzantine position in Southern Italy was gradually consolidated so that by 873 Bari was once again under Byzantine rule,^[88] and most of Southern Italy would remain in the Empire for the next 200 years.^[89] On the more important eastern front, the Empire rebuilt its defences and went on the offensive. The Paulicians were defeated and their capital of Tephrike (Divrigi) taken, while the offensive against the Abbasid Caliphate began with the recapture of Samosata.^[88]

Under Basil's son and successor, Leo VI the Wise, the gains in the east against the now-weak Abbasid Caliphate continued. However, Sicily was lost to the Arabs in 902, and in 904 Thessaloniki, the Empire's second city, was sacked by an Arab fleet. The naval weakness of the Empire was rectified. Despite this revenge the Byzantines were still unable to strike a decisive blow against the Muslims, who inflicted a crushing defeat on the imperial forces when they attempted to regain Crete in 911.^[90]

The death of the Bulgarian tsar Simeon I in 927 severely weakened the Bulgarians, allowing the Byzantines to concentrate on the eastern front.^[91] Melitene was permanently recaptured in 934, and in 943 the famous general John Kourkouas continued the offensive in Mesopotamia with some noteworthy victories, culminating in the reconquest of Edessa. Kourkouas was especially celebrated for returning to Constantinople the venerated Mandylion, a relic purportedly imprinted with a portrait of Christ.^[92]

The soldier-emperors Nikephoros II Phokas (reigned 963–969) and John I Tzimiskes (969–976) expanded the empire well into Syria, defeating the emirs of north-west Iraq. The great city of Aleppo was taken by Nikephoros in 962 and the Arabs were decisively expelled from Crete in 963. The recapture of Crete put an end to Arab raids in the Aegean allowing mainland Greece to flourish once again. Cyprus was permanently retaken in 965 and the successes of Nikephoros culminated in 969 with the recapture of Antioch, which he incorporated as a province of the Empire.^[93] His successor John Tzimiskes recaptured Damascus, Beirut, Acre, Sidon, Caesarea, and Tiberias, putting Byzantine armies within striking distance of Jerusalem, although the Muslim power centres in Iraq and Egypt were left untouched.^[94] After much campaigning in the north, the last Arab threat to Byzantium, the rich province of Sicily, was targeted in 1025 by Basil II, who died before the expedition could be completed. Nevertheless, by that time the Empire stretched from the straits of Messina to the Euphrates and from the Danube to Syria.^[95]

Wars against the Bulgarian Empire

The traditional struggle with the See of Rome continued through the Macedonian period, spurred by the question of religious supremacy over the newly Christianised state of Bulgaria.^[86] Ending eighty years of peace between the two states, the powerful Bulgarian tsar Simeon I invaded in 894 but was pushed back by the Byzantines, who used their fleet to sail up the Black Sea to attack the Bulgarian rear, enlisting the support of the Hungarians.^[96] The Byzantines were defeated at the Battle of Boulgarophygon in 896, however, and agreed to pay annual subsidies to the Bulgarians.^[90]

Leo the Wise died in 912, and hostilities soon resumed as Simeon marched to Constantinople at the head of a large army.^[97] Though the walls of the city were impregnable, the Byzantine administration was in disarray and Simeon was invited into the city, where he was granted the crown of basileus (emperor) of Bulgaria and had the young emperor Constantine VII marry one of his daughters. When a revolt in Constantinople halted his dynastic project, he again invaded Thrace and conquered Adrianople.^[98] The Empire now faced the problem of a powerful Christian state within a few days' marching distance from Constantinople,^[86] as well as having to fight on two fronts.^[90]

A great imperial expedition under Leo Phocas and Romanos I Lekapenos ended with another crushing Byzantine defeat at the Battle of Achelous in 917, and the following year the Bulgarians were free to ravage northern Greece. Adrianople was plundered again in 923, and a Bulgarian army laid siege to Constantinople in 924. Simeon died suddenly in 927, however, and Bulgarian power collapsed with him. Bulgaria and Byzantium entered a long period of peaceful relations, and the Empire was now free to concentrate on the eastern front against the Muslims.^[99] In 968, Bulgaria was overrun by the Rus' under Sviatoslav I of Kiev, but three years later, John I Tzimiskes defeated the Rus' and re-incorporated Eastern Bulgaria into the Byzantine Empire.^[100]

Bulgarian resistance revived under the rule of the Cometopuli dynasty, but the new emperor Basil II (r. 976–1025) made the submission of the Bulgarians his primary goal.^[101] Basil's first expedition against Bulgaria, however, resulted in a humiliating defeat at the Gates of Trajan. For the next few years, the emperor would be preoccupied with internal revolts in Anatolia, while the Bulgarians expanded their realm in the Balkans. The war dragged on for nearly twenty years. The Byzantine victories of Spercheios and Skopje decisively weakened the Bulgarian army, and in annual campaigns, Basil methodically reduced the Bulgarian strongholds.^[101] At the Battle of Kleidion in 1014 the Bulgarians were annihilated: their army was captured, and it is said that 99 out of every 100 men were blinded, with the hundredth man left with one eye so he could lead his compatriots home. When Tsar Samuil saw the broken remains of his once formidable army, he died of shock. By 1018, the last Bulgarian strongholds had surrendered, and the country became part of the Empire.^[101] This victory restored the Danube frontier, which had not been held since the days of the emperor Heraclius.^[95]

Relations with the Kievan Rus'

Rus' under the walls of Constantinople (860)

Between 850 and 1100, the Empire developed a mixed relationship with the new state of the Kievan Rus', which had emerged to the north across the Black Sea.^[102] This relationship would have long-lasting repercussions in the history of the East Slavs, and the Empire quickly became the main trading and cultural partner for Kiev. The Rus' launched their first attack against Constantinople in 860, pillaging the suburbs of the city. In 941, they appeared on the Asian shore of the Bosphorus, but this time they were crushed, an indication of the improvements in the Byzantine military position after 907, when only diplomacy had been able to push back the invaders. Basil II could not ignore the emerging power of the Rus', and, following the example of his predecessors, he used religion as a means for the achievement of political purposes.^[103] Rus'–Byzantine relations became closer following the marriage of Anna Porphyrogeneta to Vladimir the Great in 988, and the subsequent Christianisation of the Rus'.^[102] Byzantine priests, architects, and artists were invited to work on numerous cathedrals and churches around Rus', expanding Byzantine cultural influence even further, while numerous Rus' served in the Byzantine army as mercenaries, most notably as the famous Varangian Guard.^[102]

Even after the Christianisation of the Rus', however, relations were not always friendly. The most serious conflict between the two powers was the war of 968–971 in Bulgaria, but several Rus' raiding expeditions against the Byzantine cities of the Black Sea coast and Constantinople itself are also recorded. Although most were repulsed, they were often followed by treaties that were generally favourable to the Rus', such as the one concluded at the end of the war of 1043, during which the Rus' gave an indication of their ambitions to compete with the Byzantines as an independent power.^[103]

Campaigns against Georgia

The integrity of the Byzantine empire itself was under serious threat after a full-scale rebellion, led by Bardas Skleros, broke out in 976. Following a series of successful battles the rebels swept across Asia Minor. In the urgency of a situation, Georgian prince David Kuropalate aided Basil II and after decisive loyalist victory at the Battle of Pankaleia, he was rewarded by lifetime rule of key imperial territories in eastern Asia Minor. However, David’s rebuff of Basil in Bardas Phocas’ revolt of 987 evoked Constantinople’s distrust of the Georgian rulers. After the failure of the revolt, David was forced to make Basil II the legatee of his extensive possessions. This agreement destroyed a previous arrangement by which David had made his adopted son, Bagrat III of Georgia, his heir. Basil gathered his inheritance upon David’s death in 1000 and reorganized provinces of Tao, Theodosiopolis, Phasiane and the Lake Van region (Apahunik) with the city of Manzikert – to the theme of Iberia.

The following year, the Georgian prince Gurgen, natural father of Bagrat III, marched to take David’s inheritance, but was thwarted by the Byzantine general Nikephoros Ouranos, dux of Antioch, forcing the successor Georgian Bagratids to recognize the new rearrangement. Bagrat’s son, George I, however, inherited a longstanding claim to David’s succession. Young and ambitious, George launched a campaign to restore the Kuropalates’ succession to Georgia and occupied Tao in 1015–1016. He also entered in an alliance with the Fatimid Caliph of Egypt, Al-Hakim (c.996–1021), that put Basil in a difficult situation, forcing him to refrain from an acute response to George’s offensive.

A miniature depicting the defeat of the Georgian king George I ("Georgios of Abasgia") by the Byzantine emperor Basil. Skylitzes Matritensis, fol. 195v. George is shown as fleeing on horseback on the right and Basil holding a shield and lance on the left.

Beyond that, the Byzantines were at that time involved in a relentless war with the Bulgar Empire, limiting their actions to the west. But as soon as Bulgaria was conquered in 1018, and Al-Hakim was no more alive, Basil led his army against Georgia. preparations for a larger-scale campaign against Kingdom of Georgia were set in train, beginning with the re-fortification of Theodosiopolis. In the autumn of 1021, Basil ahead of a large army, reinforced by the Varangian Guards, attacked the Georgians and their Armenian allies, recovering Phasiane and pushing on beyond the frontiers of Tao into inner Georgia. King George burned the city of Oltisi keep it out of the enemy’s hands and retreated to Kola. A bloody battle was fought near the village Shirimni at the Lake Palakazio (now Çildir, Turkey) on September 11 and the emperor won a costly victory, forcing George I to retreat northwards into his kingdom. Plundering the country on his way, Basil withdrew to winter at Trebizond.

Several attempts to negotiate the conflict went in vain and, in the meantime, George received reinforcements from the Kakhetians, and allied himself with the Byzantine commanders Nicephorus Phocas and Nicephorus Xiphias in their abortive insurrection in the emperor’s rear. In December, George’s ally, the Armenian king Senekerim of Vaspurakan, being harassed by the Seljuk Turks, surrendered his kingdom to the emperor. During the spring of 1022, Basil launched a final offensive winning a crushing victory over the Georgians at Svindax. Menaced both by land and sea, King George handed over Tao, Phasiane, Kola, Artaan and Javakheti, and left his infant son Bagrat a hostage in Basil's hands.

Apex

Basil II is considered among the most capable Byzantine emperors and his reign as the apex of the empire in the Middle Ages. By 1025, the date of Basil II's death, the Byzantine Empire stretched from Armenia in the east to Calabria in Southern Italy in the west.^[95] Many successes had been achieved, ranging from the conquest of Bulgaria to the annexation of parts of Georgia and Armenia, and the reconquest of Crete, Cyprus, and the important city of Antioch. These were not temporary tactical gains but long-term reconquests.^[88]

Leo VI achieved the complete codification of Byzantine law in Greek. This monumental work of 60 volumes became the foundation of all subsequent Byzantine law and is still studied today.^[104] Leo also reformed the administration of the Empire, redrawing the borders of the administrative subdivisions (the Themata, or "Themes") and tidying up the system of ranks and privileges, as well as regulating the behaviour of the various trade guilds in Constantinople. Leo's reform did much to reduce the previous fragmentation of the Empire, which henceforth had one center of power, Constantinople.^[105] However, the increasing military success of the Empire greatly enriched and empowered the provincial nobility with respect to the peasantry, who were essentially reduced to a state of serfdom.^[106]

Under the Macedonian emperors, the city of Constantinople flourished, becoming the largest and wealthiest city in Europe, with a population of approximately 400,000 in the 9th and 10th centuries.^[107] During this period, the Byzantine Empire employed a strong civil service staffed by competent aristocrats that oversaw the collection of taxes, domestic administration, and foreign policy. The Macedonian emperors also increased the Empire's wealth by fostering trade with Western Europe, particularly through the sale of silk and metalwork.^[108]

Split between Orthodox Christianity and Catholicism (1054)

The Macedonian period also included events of momentous religious significance. The conversion of the Bulgarians, Serbs and Rus' to Orthodox Christianity permanently changed the religious map of Europe and still resonates today. Cyril and Methodius, two Byzantine Greek brothers from Thessaloniki, contributed significantly to the Christianization of the Slavs and in the process devised the Glagolitic alphabet, ancestor to the Cyrillic script.^[109]

In 1054, relations between the Eastern and Western traditions within the Christian Church reached a terminal crisis, known as the East–West Schism. Although there was a formal declaration of institutional separation, on July 16, when three papal legates entered the Hagia Sophia during Divine Liturgy on a Saturday afternoon and placed a bull of excommunication on the altar,^[110] the so-called Great Schism was actually the culmination of centuries of gradual separation.^[111] Unfortunately the legates did not know that the Pope had died, an event that made the excommunication void and the excommunication only applied to the Patriarch who responded by excommunicating the legates.

Crisis and fragmentation

The Empire soon fell into a period of difficulties, caused to a large extent by the undermining of the theme system and the neglect of the military. Nikephoros II, John Tzimiskes, and Basil II changed the military divisions (τάγματα, tagmata) from a rapid response, primarily defensive, citizen army into a professional, campaigning army, increasingly manned by mercenaries. Mercenaries were expensive, however, and as the threat of invasion receded in the 10th century, so did the need for maintaining large garrisons and expensive fortifications.^[112] Basil II left a burgeoning treasury upon his death, but he neglected to plan for his succession. None of his immediate successors had any particular military or political talent and the administration of the Empire increasingly fell into the hands of the civil service. Efforts to revive the Byzantine economy only resulted in inflation and a debased gold coinage. The army was now seen as both an unnecessary expense and a political threat. Native troops were therefore cashiered and replaced by foreign mercenaries on specific contract.^[113]

At the same time, the Empire was faced with new enemies. Provinces in southern Italy faced the Normans, who arrived in Italy at the beginning of the 11th century. During a period of strife between Constantinople and Rome culminating in the East-West Schism of 1054, the Normans began to advance, slowly but steadily, into Byzantine Italy.^[114] Reggio, the capital of the tagma of Calabria, was captured in 1060 by Robert Guiscard, followed by Otranto in 1068. Bari, the main Byzantine stronghold in Apulia, was besieged in August 1068 and fell in April 1071.^[115] The Byzantines also lost their influence over the Dalmatian coastal cities to Peter Krešimir IV of Croatia (r. 1058–1074/1075) in 1069.^[116]

The greatest disaster took place in Asia Minor, however, where the Seljuq Turks made their first explorations across the Byzantine frontier into Armenia in 1065 and 1067. The emergency lent weight to the military aristocracy in Anatolia, who in 1068 secured the election of one of their own, Romanos Diogenes, as emperor. In the summer of 1071, Romanos undertook a massive eastern campaign to draw the Seljuks into a general engagement with the Byzantine army. At the Battle of Manzikert, Romanos suffered a surprise defeat by Sultan Alp Arslan, and he was captured. Alp Arslan treated him with respect and imposed no harsh terms on the Byzantines.^[113] In Constantinople, however, a coup put in power Michael Doukas, who soon faced the opposition of Nikephoros Bryennios and Nikephoros Botaneiates. By 1081, the Seljuks had expanded their rule over virtually the entire Anatolian plateau from Armenia in the east to Bithynia in the west, and they had founded their capital at Nicaea, just 90 kilometres (56 miles) from Constantinople.^[117]

Komnenian dynasty and the crusaders

During the Komnenian, or Comnenian, period from about 1081 to about 1185, the five emperors of the Komnenos dynasty (Alexios I, John II, Manuel I, Alexios II, and Andronikos I) presided over a sustained, though ultimately incomplete, restoration of the military, territorial, economic, and political position of the Byzantine Empire.^[118] Although the Seljuk Turks occupied the heartland of the Empire in Anatolia, most Byzantine military efforts during this period were directed against Western powers, particularly the Normans.^[118]

The Empire under the Komnenoi played a key role in the history of the Crusades in the Holy Land, which Alexios I had helped bring about, while also exerting enormous cultural and political influence in Europe, the Near East, and the lands around the Mediterranean Sea under John and Manuel. Contact between Byzantium and the "Latin" West, including the Crusader states, increased significantly during the Komnenian period. Venetian and other Italian traders became resident in large numbers in Constantinople and the empire (there were an estimated 60,000 Latins in Constantinople alone, out of a population of three to four hundred thousand), and their presence together with the numerous Latin mercenaries who were employed by Manuel helped to spread Byzantine technology, art, literature and culture throughout the Latin West, while also leading to a flow of Western ideas and customs into the Empire.^[119]

In terms of prosperity and cultural life, the Komnenian period was one of the peaks in Byzantine history,^[120] and Constantinople remained the leading city of the Christian world in size, wealth, and culture.^[121] There was a renewed interest in classical Greek philosophy, as well as an increase in literary output in vernacular Greek.^[122] Byzantine art and literature held a pre-eminent place in Europe, and the cultural impact of Byzantine art on the west during this period was enormous and of long lasting significance.^[123]

Alexios I and the First Crusade

After Manzikert, a partial recovery (referred to as the Komnenian restoration) was made possible by the Komnenian dynasty.^[124] The first Komnenian emperor was Isaac I (1057–1059), after which the Doukas dynasty held power (1059–81). The Komnenoi attained power again under Alexios I in 1081. From the outset of his reign, Alexios faced a formidable attack by the Normans under Robert Guiscard and his son Bohemund of Taranto, who captured Dyrrhachium and Corfu, and laid siege to Larissa in Thessaly. Robert Guiscard's death in 1085 temporarily eased the Norman problem. The following year, the Seljuq sultan died, and the sultanate was split by internal rivalries. By his own efforts, Alexios defeated the Pechenegs; they were caught by surprise and annihilated at the Battle of Levounion on 28 April 1091.^[125]

The Byzantine Empire and the Seljuk Sultanate of Rûm before the First Crusade (1095–1099)

Having achieved stability in the West, Alexios could turn his attention to the severe economic difficulties and the disintegration of the Empire's traditional defences.^[126] However, he still did not have enough manpower to recover the lost territories in Asia Minor and to advance against the Seljuks. At the Council of Piacenza in 1095, envoys from Alexios spoke to Pope Urban II about the suffering of the Christians of the East, and underscored that without help from the West they would continue to suffer under Muslim rule.^[127]

Urban saw Alexios's request as a dual opportunity to cement Western Europe and reunite the Eastern Orthodox Church with the Roman Catholic Church under his rule.^[127] On 27 November 1095, Pope Urban II called together the Council of Clermont, and urged all those present to take up arms under the sign of the Cross and launch an armed pilgrimage to recover Jerusalem and the East from the Muslims. The response in Western Europe was overwhelming.^[125]

Alexios had anticipated help in the form of mercenary forces from the West, but he was totally unprepared for the immense and undisciplined force that soon arrived in Byzantine territory. It was no comfort to Alexios to learn that four of the eight leaders of the main body of the Crusade were Normans, among them Bohemund. Since the crusade had to pass through Constantinople, however, the Emperor had some control over it. He required its leaders to swear to restore to the empire any towns or territories they might reconquer from the Turks on their way to the Holy Land. In return, he gave them guides and a military escort.^[128]

Alexios was able to recover a number of important cities and islands, and in fact much of western Asia Minor. Nevertheless, the Catholic/Latin crusaders believed their oaths were invalidated when Alexios did not help them during the siege of Antioch (he had in fact set out on the road to Antioch but had been persuaded to turn back by Stephen of Blois, who assured him that all was lost and that the expedition had already failed).^[129] Bohemund, who had set himself up as Prince of Antioch, briefly went to war with the Byzantines, but he agreed to become Alexios' vassal under the Treaty of Devol in 1108, which marked the end of the Norman threat during Alexios' reign.^[130]

John II, Manuel I and the Second Crusade

Medieval manuscript depicting the Capture of Jerusalem during the First Crusade

Alexios's son John II Komnenos succeeded him in 1118 and ruled until 1143. John was a pious and dedicated Emperor who was determined to undo the damage to the empire suffered at the Battle of Manzikert, half a century earlier.^[131] Famed for his piety and his remarkably mild and just reign, John was an exceptional example of a moral ruler at a time when cruelty was the norm.^[132] For this reason, he has been called the Byzantine Marcus Aurelius.

During his twenty-five year reign, John made alliances with the Holy Roman Empire in the West and decisively defeated the Pechenegs at the Battle of Beroia.^[133] He thwarted Hungarian and Serbian threats during the 1120s, and in 1130 he allied himself with the German emperor Lothair III against the Norman king Roger II of Sicily.^[134]

In the later part of his reign, John focused his activities on the East, personally leading numerous campaigns against the Turks in Asia Minor. His campaigns fundamentally altered the balance of power in the East, forcing the Turks onto the defensive, while restoring many towns, fortresses, and cities across the peninsula to the Byzantines. He defeated the Danishmend Emirate of Melitene and reconquered all of Cilicia, while forcing Raymond of Poitiers, Prince of Antioch, to recognise Byzantine suzerainty. In an effort to demonstrate the Emperor's role as the leader of the Christian world, John marched into the Holy Land at the head of the combined forces of the Empire and the Crusader states; yet despite his great vigour pressing the campaign, his hopes were disappointed by the treachery of his Crusader allies.^[135] In 1142, John returned to press his claims to Antioch, but he died in the spring of 1143 following a hunting accident. Raymond was emboldened to invade Cilicia, but he was defeated and forced to go to Constantinople to beg mercy from the new Emperor.^[136]

John's chosen heir was his fourth son, Manuel I Komnenos, who campaigned aggressively against his neighbours both in the west and in the east. In Palestine, Manuel allied with the Crusader Kingdom of Jerusalem and sent a large fleet to participate in a combined invasion of Fatimid Egypt. Manuel reinforced his position as overlord of the Crusader states, with his hegemony over Antioch and Jerusalem secured by agreement with Raynald, Prince of Antioch, and Amalric, King of Jerusalem.^[137] In an effort to restore Byzantine control over the ports of southern Italy, he sent an expedition to Italy in 1155, but disputes within the coalition led to the eventual failure of the campaign. Despite this military setback, Manuel's armies successfully invaded the Southern parts of Kingdom of Hungary in 1167, defeating the Hungarians at the Battle of Sirmium. By 1168, nearly the whole of the eastern Adriatic coast lay in Manuel's hands.^[138] Manuel made several alliances with the Pope and Western Christian kingdoms, and he successfully handled the passage of the Second Crusade through his empire.^[139]

In the east, however, Manuel suffered a major defeat in 1176 at the Battle of Myriokephalon, against the Turks. Yet the losses were quickly recovered, and in the following year Manuel's forces inflicted a defeat upon a force of "picked Turks".^[140] The Byzantine commander John Vatatzes, who destroyed the Turkish invaders at the Battle of Hyelion and Leimocheir, not only brought troops from the capital but also was able to gather an army along the way, a sign that the Byzantine army remained strong and that the defensive program of western Asia Minor was still successful.^[141]

12th-century Renaissance

John and Manuel pursued active military policies, and both deployed considerable resources on sieges and on city defences; aggressive fortification policies were at the heart of their imperial military policies.^[142] Despite the defeat at Myriokephalon, the policies of Alexios, John and Manuel resulted in vast territorial gains, increased frontier stability in Asia Minor, and secured the stabilisation of the Empire's European frontiers. From c. 1081 to c. 1180, the Komnenian army assured the Empire's security, enabling Byzantine civilisation to flourish.^[143]

This allowed the Western provinces to achieve an economic revival that continued until the close of the century. It has been argued that Byzantium under the Komnenian rule was more prosperous than at any time since the Persian invasions of the 7th century. During the 12th century, population levels rose and extensive tracts of new agricultural land were brought into production. Archaeological evidence from both Europe and Asia Minor shows a considerable increase in the size of urban settlements, together with a notable upsurge in new towns. Trade was also flourishing; the Venetians, the Genoese and others opened up the ports of the Aegean to commerce, shipping goods from the Crusader kingdoms of Outremer and Fatimid Egypt to the west and trading with the Empire via Constantinople.^[144]

In artistic terms, there was a revival in mosaic, and regional schools of architecture began producing many distinctive styles that drew on a range of cultural influences.^[145] During the 12th century, the Byzantines provided their model of early humanism as a renaissance of interest in classical authors. In Eustathius of Thessalonica, Byzantine humanism found its most characteristic expression.^[146] In philosophy, there was resurgence of classical learning not seen since the 7th century, characterised by a significant increase in the publication of commentaries on classical works.^[122] In addition, the first transmission of classical Greek knowledge to the West occurred during the Komnenian period.^[123]

Decline and disintegration

Angelid dynasty

Manuel's death on 24 September 1180 left his 11-year-old son Alexios II Komnenos on the throne. Alexios was highly incompetent at the office, but it was his mother, Maria of Antioch, and her Frankish background that made his regency unpopular.^[147] Eventually, Andronikos I Komnenos, a grandson of Alexios I, launched a revolt against his younger relative and managed to overthrow him in a violent coup d'état.^[148] Utilizing his good looks and his immense popularity with the army, he marched on to Constantinople in August 1182 and incited a massacre of the Latins.^[148] After eliminating his potential rivals, he had himself crowned as co-emperor in September 1183. He eliminated Alexios II, and took his 12-year-old wife Agnes of France for himself.^[148]

Andronikos began his reign well; in particular, the measures he took to reform the government of the Empire have been praised by historians. According to George Ostrogorsky, Andronikos was determined to root out corruption: Under his rule, the sale of offices ceased; selection was based on merit, rather than favouritism; officials were paid an adequate salary so as to reduce the temptation of bribery. In the provinces, Andronikos's reforms produced a speedy and marked improvement.^[149] The aristocrats were infuriated against him, and to make matters worse, Andronikos seems to have become increasingly unbalanced; executions and violence became increasingly common, and his reign turned into a reign of terror.^[150] Andronikos seemed almost to seek the extermination of the aristocracy as a whole. The struggle against the aristocracy turned into wholesale slaughter, while the Emperor resorted to ever more ruthless measures to shore up his regime.^[149]

Despite his military background, Andronikos failed to deal with Isaac Komnenos, Béla III of Hungary (r. 1172–1196) who reincorporated Croatian territories into Hungary, and Stephen Nemanja of Serbia (r. 1166–1196) who declared his independence from the Byzantine Empire. Yet, none of these troubles would compare to William II of Sicily's (r. 1166–1189) invasion force of 300 ships and 80,000 men, arriving in 1185.^[151] Andronikos mobilised a small fleet of 100 ships to defend the capital, but other than that he was indifferent to the populace. He was finally overthrown when Isaac Angelos, surviving an imperial assassination attempt, seized power with the aid of the people and had Andronikos killed.^[152]

The reign of Isaac II, and more so that of his brother Alexios III, saw the collapse of what remained of the centralised machinery of Byzantine government and defence. Although the Normans were driven out of Greece, in 1186 the Vlachs and Bulgars began a rebellion that led to the formation of the Second Bulgarian Empire. The internal policy of the Angeloi was characterised by the squandering of the public treasure and fiscal maladministration. Imperial authority was severely weakened, and the growing power vacuum at the center of the Empire encouraged fragmentation. There is evidence that some Komnenian heirs had set up a semi-independent state in Trebizond before 1204.^[153] According to Alexander Vasiliev, "the dynasty of the Angeloi, Greek in its origin, ... accelerated the ruin of the Empire, already weakened without and disunited within."^[154]

Fourth Crusade

In 1198, Pope Innocent III broached the subject of a new crusade through legates and encyclical letters.^[155] The stated intent of the crusade was to conquer Egypt, now the centre of Muslim power in the Levant. The crusader army that arrived at Venice in the summer of 1202 was somewhat smaller than had been anticipated, and there were not sufficient funds to pay the Venetians, whose fleet was hired by the crusaders to take them to Egypt. Venetian policy under the ageing and blind but still ambitious Doge Enrico Dandolo was potentially at variance with that of the Pope and the crusaders, because Venice was closely related commercially with Egypt.^[156] The crusaders accepted the suggestion that in lieu of payment they assist the Venetians in the capture of the (Christian) port of Zara in Dalmatia (vassal city of Venice, which had rebelled and placed itself under Hungary's protection in 1186).^[157] The city fell in November 1202 after a brief siege.^[158] Innocent tried to forbid this political attack on a Christian city, but was ignored. Reluctant to jeopardise his own agenda for the Crusade, he gave conditional absolution to the crusaders—not, however, to the Venetians.^[156]

After the death of Theobald III, Count of Champagne, the leadership of the Crusade passed to Boniface of Montferrat, a friend of the Hohenstaufen Philip of Swabia. Both Boniface and Philip had married into the Byzantine Imperial family. In fact, Philip's brother-in-law, Alexios Angelos, son of the deposed and blinded Emperor Isaac II Angelos, had appeared in Europe seeking aid and had made contacts with the crusaders. Alexios offered to reunite the Byzantine church with Rome, pay the crusaders 200,000 silver marks, join the crusade and provide all the supplies they needed to get to Egypt.^[159] Innocent was aware of a plan to divert the Crusade to Constantinople and forbade any attack on the city, but the papal letter arrived after the fleets had left Zara.

Crusader sack of Constantinople (1204)

The partition of the empire following the Fourth Crusade, c. 1204

The crusaders arrived at Constantinople in the summer of 1203 and quickly attacked, started a major fire that damaged large parts of the city and briefly seized control. Alexios III fled from the capital and Alexios Angelos was elevated to the throne as Alexios IV along with his blind father Isaac. Alexios IV and Isaac II were unable to keep their promises and were deposed by Alexios V. The crusaders again took the city on 13 April 1204 and Constantinople was subjected to pillage and massacre by the rank and file for three days. Many priceless icons, relics and other objects later turned up in Western Europe, a large number in Venice. According to Choniates, a prostitute was even set up on the Patriarchal throne.^[160] When Innocent III heard of the conduct of his crusaders, he castigated them in no uncertain terms but the situation was beyond his control, especially after his legate, on his own initiative, had absolved the crusaders from their vow to proceed to the Holy Land.^[156] When order had been restored, the crusaders and the Venetians proceeded to implement their agreement; Baldwin of Flanders was elected Emperor of a new Latin Empire and the Venetian Thomas Morosini was chosen as Patriarch. The lands divided up among the leaders included most of the former Byzantine possessions, though resistance would continue through the Byzantine remnants of the Nicaea, Trebizond, and Epirus.^[156] Although Venice was more interested in commerce than conquering territory, it took key areas of Constantinople and the Doge took the title of "Lord of a Quarter and Half a Quarter of the Roman Empire".^[161]

Fall

Empire in exile

After the sack of Constantinople in 1204 by Latin crusaders, two Byzantine successor states were established: the Empire of Nicaea, and the Despotate of Epirus. A third, the Empire of Trebizond, was created after Georgian expedition in Chaldia,^[162] commanded by Alexios Komnenos a few weeks before the sack of Constantinople, who later found himself de facto emperor, and established himself in Trebizond. Of the three successor states, Epirus and Nicaea stood the best chance of reclaiming Constantinople. The Nicaean Empire struggled to survive the next few decades, however, and by the mid-13th century it had lost much of southern Anatolia.^[163] The weakening of the Sultanate of Rûm following the Mongol invasion in 1242–43 allowed many beyliks and ghazis to set up their own principalities in Anatolia, weakening the Byzantine hold on Asia Minor.^[164] In time, one of the Beys, Osman I, created an empire that would eventually conquer Constantinople. However, the Mongol invasion also gave Nicaea a temporary respite from Seljuk attacks, allowing it to concentrate on the Latin Empire to its north.

Reconquest of Constantinople

The Empire of Nicaea, founded by the Laskarid dynasty, managed to effect the Recapture of Constantinople from the Latins in 1261 and defeat Epirus. This led to a short-lived revival of Byzantine fortunes under Michael VIII Palaiologos but the war-ravaged Empire was ill-equipped to deal with the enemies that surrounded it. To maintain his campaigns against the Latins, Michael pulled troops from Asia Minor and levied crippling taxes on the peasantry, causing much resentment.^[165] Massive construction projects were completed in Constantinople to repair the damage of the Fourth Crusade but none of these initiatives was of any comfort to the farmers in Asia Minor suffering raids from Muslim ghazis.^[166]

Rather than holding on to his possessions in Asia Minor, Michael chose to expand the Empire, gaining only short-term success. To avoid another sacking of the capital by the Latins, he forced the Church to submit to Rome, again a temporary solution for which the peasantry hated Michael and Constantinople.^[167] The efforts of Andronikos II and later his grandson Andronikos III marked Byzantium's last genuine attempts in restoring the glory of the Empire. However, the use of mercenaries by Andronikos II would often backfire, with the Catalan Company ravaging the countryside and increasing resentment towards Constantinople.^[168]

Rise of the Ottomans and fall of Constantinople

The situation became worse for Byzantium during the civil wars after Andronikos III died. A six-year-long civil war devastated the empire, allowing the Serbian ruler Stefan Dušan (r. 1331–1346) to overrun most of the Empire's remaining territory and establish a Serbian Empire. In 1354, an earthquake at Gallipoli devastated the fort, allowing the Ottomans (who were hired as mercenaries during the civil war by John VI Kantakouzenos) to establish themselves in Europe.^[169] By the time the Byzantine civil wars had ended, the Ottomans had defeated the Serbians and subjugated them as vassals. Following the Battle of Kosovo, much of the Balkans became dominated by the Ottomans.^[170]

The Byzantine emperors appealed to the West for help, but the Pope would only consider sending aid in return for a reunion of the Eastern Orthodox Church with the See of Rome. Church unity was considered, and occasionally accomplished by imperial decree, but the Orthodox citizenry and clergy intensely resented the authority of Rome and the Latin Rite.^[171] Some Western troops arrived to bolster the Christian defence of Constantinople, but most Western rulers, distracted by their own affairs, did nothing as the Ottomans picked apart the remaining Byzantine territories.^[172]

Constantinople by this stage was underpopulated and dilapidated. The population of the city had collapsed so severely that it was now little more than a cluster of villages separated by fields. On 2 April 1453, Sultan Mehmed's army of 80,000 men and large numbers of irregulars laid siege to the city.^[173] Despite a desperate last-ditch defence of the city by the massively outnumbered Christian forces (c. 7,000 men, 2,000 of whom were foreign),^[172] Constantinople finally fell to the Ottomans after a two-month siege on 29 May 1453. The last Byzantine emperor, Constantine XI Palaiologos, was last seen casting off his imperial regalia and throwing himself into hand-to-hand combat after the walls of the city were taken.^[174]

Political aftermath

By the time of the fall of Constantinople, the only remaining territory of the Byzantine Empire was the Despotate of the Morea (Peloponnese), which was ruled by brothers of the last Emperor, Thomas Palaiologos and Demetrios Palaiologos. The Despotate continued on as an independent state by paying an annual tribute to the Ottomans. Incompetent rule, failure to pay the annual tribute and a revolt against the Ottomans finally led to Mehmed II's invasion of Morea in May 1460. Demetrios asked the Ottomans to invade and drive Thomas out. Thomas fled. The Ottomans moved through the Morea and conquered virtually the entire Despotate by the summer. Demetrios thought the Morea would be restored to him to rule, but it was incorporated into the Ottoman fold.

A few holdouts remained for a time. The island of Monemvasia refused to surrender and it was first ruled for a short time by an Aragonese corsair. When the population drove him out they obtained the consent of Thomas to place themselves under the Pope's protection before the end of 1460. The Mani Peninsula, on the Morea's south end, resisted under a loose coalition of the local clans and then that area came under Venice's rule. The very last holdout was Salmeniko, in the Morea's northwest. Graitzas Palaiologos was the military commander there, stationed at Salmeniko Castle. While the town eventually surrendered, Graitzas and his garrison and some town residents held out in the castle until July 1461, when they escaped and reached Venetian territory.^[175]

The Empire of Trebizond, which had split away from the Byzantine Empire just weeks before Constantinople was taken by the Crusaders in 1204, became the last remnant and last de facto successor state to the Byzantine Empire. Efforts by the Emperor David to recruit European powers for an anti-Ottoman crusade provoked war between the Ottomans and Trebizond in the summer of 1461. After a month-long siege, David surrendered the city of Trebizond on 14 August 1461. The Empire of Trebizond's Crimean principality, the Principality of Theodoro (part of the Perateia), lasted another 14 years, falling to the Ottomans in December 1475.

A nephew of the last Emperor, Constantine XI, Andreas Palaiologos claimed to have inherited the title of Byzantine Emperor. He lived in the Morea until its fall in 1460, then escaped to Rome where he lived under the protection of the Papal States for the remainder of his life. Since the office of emperor had never been technically hereditary, Andreas' claim would have been without merit under Byzantine law. However, the Empire had vanished, and Western states generally followed the Roman-church-sanctioned principles of hereditary sovereignty. Seeking a life in the west, Andreas styled himself Imperator Constantinopolitanus ("Emperor of Constantinople"), and sold his succession rights to both Charles VIII of France and the Catholic Monarchs.

Constantine XI died without producing an heir, and had Constantinople not fallen he might have been succeeded by the sons of his deceased elder brother, who were taken into the palace service of Mehmed II after the fall of Constantinople. The oldest boy, renamed Has Murad, became a personal favorite of Mehmed and served as Beylerbey (Governor-General) of the Balkans. The younger son, renamed Mesih Pasha, became Admiral of the Ottoman fleet and Sancak Beg (Governor) of the Province of Gallipoli. He eventually served twice as Grand Vizier under Mehmed's son, Bayezid II.^[176]

Mehmed II and his successors continued to consider themselves heirs to the Roman Empire until the demise of the Ottoman Empire in the early 20th century following World War 1. They considered that they had simply shifted its religious basis as Constantine had done before, and they continued to refer to their conquered Eastern Roman inhabitants (Orthodox Christians) as Rûm. Meanwhile, the Danubian Principalities (whose rulers also considered themselves the heirs of the Eastern Roman Emperors^[177]) harboured Orthodox refugees, including some Byzantine nobles.

At his death, the role of the emperor as a patron of Eastern Orthodoxy was claimed by Ivan III, Grand duke of Muscovy. He had married Andreas' sister, Sophia Paleologue, whose grandson, Ivan IV, would become the first Tsar of Russia (tsar, or czar, meaning caesar, is a term traditionally applied by Slavs to the Byzantine Emperors). Their successors supported the idea that Moscow was the proper heir to Rome and Constantinople. The idea of the Russian Empire as the successive Third Rome was kept alive until its demise with the Russian Revolution.^[178]

Government and bureaucracy

In the Byzantine state, the emperor was the sole and absolute ruler, and his power was regarded as having divine origin.^[179] The Senate had ceased to have real political and legislative authority but remained as an honorary council with titular members. By the end of the 8th century, a civil administration focused on the court was formed as part of a large-scale consolidation of power in the capital (the rise to pre-eminence of the position of sakellarios is related to this change).^[180] The most important administrative reform, which probably started in the mid-7th century, was the creation of themes, where civil and military administration was exercised by one person, the strategos.^[181]

The themes, c. 750

The themes, c. 950

Despite the occasionally derogatory use of the terms "Byzantine" and "Byzantinism", the Byzantine bureaucracy had a distinct ability for reconstituting itself in accordance with the Empire's situation. The elaborate system of titulature and precedence gave the court prestige and influence. Officials were arranged in strict order around the emperor, and depended upon the imperial will for their ranks. There were also actual administrative jobs, but authority could be vested in individuals rather than offices.^[182]

In the 8th and 9th centuries, civil service constituted the clearest path to aristocratic status, but, starting in the 9th century, the civil aristocracy was rivalled by an aristocracy of nobility. According to some studies of Byzantine government, 11th-century politics were dominated by competition between the civil and the military aristocracy. During this period, Alexios I undertook important administrative reforms, including the creation of new courtly dignities and offices.^[183]

Diplomacy

After the fall of Rome, the key challenge to the Empire was to maintain a set of relations between itself and its neighbours. When these nations set about forging formal political institutions, they often modelled themselves on Constantinople. Byzantine diplomacy soon managed to draw its neighbours into a network of international and inter-state relations.^[184] This network revolved around treaty making, and included the welcoming of the new ruler into the family of kings, and the assimilation of Byzantine social attitudes, values and institutions.^[185] Whereas classical writers are fond of making ethical and legal distinctions between peace and war, Byzantines regarded diplomacy as a form of war by other means. For example, a Bulgarian threat could be countered by providing money to the Kievan Rus'.^[186]

Diplomacy in the era was understood to have an intelligence-gathering function on top of its pure political function. The Bureau of Barbarians in Constantinople handled matters of protocol and record keeping for any issues related to the "barbarians", and thus had, perhaps, a basic intelligence function itself.^[187] John B. Bury believed that the office exercised supervision over all foreigners visiting Constantinople, and that they were under the supervision of the Logothetes tou dromou.^[188] While on the surface a protocol office – its main duty was to ensure foreign envoys were properly cared for and received sufficient state funds for their maintenance, and it kept all the official translators – it probably had a security function as well.^[189]

Byzantines availed themselves of a number of diplomatic practices. For example, embassies to the capital would often stay on for years. A member of other royal houses would routinely be requested to stay on in Constantinople, not only as a potential hostage, but also as a useful pawn in case political conditions where he came from changed. Another key practice was to overwhelm visitors by sumptuous displays.^[184] According to Dimitri Obolensky, the preservation of the ancient civilisation in Europe was due to the skill and resourcefulness of Byzantine diplomacy, which remains one of Byzantium's lasting contributions to the history of Europe.^[190]

Science, medicine and law

The writings of Classical antiquity were cultivated and extended in Byzantium. Therefore, Byzantine science was in every period closely connected with ancient philosophy, and metaphysics.^[191] In the field of engineering Isidore of Miletus, the Greek mathematician and architect of the Hagia Sophia, produced the first compilation of Archimedes' works c. 530, and it is through this manuscript tradition, kept alive by the school of mathematics and engineering founded c. 850 during the "Byzantine Renaissance" by Leo the Geometer, that such works are known today (see Archimedes Palimpsest).^[192]

Byzantines stood behind several technological advancements.

Pendentive architecture, a specific spherical form in the upper corners to support a dome, is a Byzantine invention. Although the first experimentation was made in the 200s, it was in the 6th-century in Byzantine Empire that its potential was fully achieved.^[193]

A mechanical sundial device consisting of complex gears made by the Byzantines has been excavated which indicates that the Antikythera mechanism, a sort of analog mechanism used in astronomy invented around the late second century BC, continued to be (re)active in the Byzantine period.^[194]^[195]^[196] J. R. Partington writes that “Constantinople was full of inventors and craftsmen. The "philosopher" Leo of Thessalonika made for the Emperor Theophilos (829–42) a golden tree, the branches of which carried artificial birds which flapped their wings and sang, a model lion which moved and roared, and a bejewelled clockwork lady who walked. These mechanical toys continued the tradition represented in the treatise of Heron of Alexandria (c. A.D. 125), which was well-known to the Byzantines”.^[197] Such mechanical devices reached high level of sophistication and were made in order to impress the visitors.^[198]

The frontispiece of the Vienna Dioscurides, which shows a set of seven famous physicians

Leo the Mathematician has also been credited with the system of beacons, a sort of optical telegraph, stretching across Anatolia from Cilicia to Constantinople, which gave advance warning of enemy raids, and which was used as diplomatic communication as well.

The Byzantines knew and used the concept of hydraulic: in the 900s the diplomat Liutprand of Cremona, when visiting the Byzantine emperor, explained that he saw the emperor sitting on a hydraulic throne and that it was "made in such a cunning manner that at one moment it was down on the ground, while at another it rose higher and was seen to be up in the air".^[199]

John Philoponus, an Alexandrian philologist, Aristotelian commentator and Christian theologian, author of a considerable number of philosophical treatises and theological works, was the first who questioned Aristotle's teaching of physics. Before that nobody questioned Aristotle's teaching of physics despite it had flaws.

Aristotle’s physics was not scrutinized until John Philoponus appeared, and unlike Aristotle who based his physics on verbal argument, Philoponus relied on observation. On Aristotle's physics John Philoponus wrote:

“But this is completely erroneous, and our view may be corroborated by actual observation more effectively than by any sort of verbal argument. For if you let fall from the same height two weights of which one is many times as heavy as the other, you will see that the ratio of the times required for the motion does not depend on the ratio of the weights, but that the difference in time is a very small one. And so, if the difference in the weights is not considerable, that is, of one is, let us say, double the other, there will be no difference, or else an imperceptible difference, in time, though the difference in weight is by no means negligible, with one body weighing twice as much as the other”^[200]

John Philoponus' criticism of Aristotelian principles of physics was an inspiration for Galileo Galilei many centuries later, as Galileo cited Philoponus substantially in his works, and was the reason why Galileo also refuted Aristotelian physics during the Scientific Revolution.^[201]^[202]

Ship mill is an invention made by the Byzantines, and was constructed in order to mil grains by using the energy of the stream of water. The technology eventually spread to the rest of Europe and was in use until ca. 1800.^[203]^[204]

Under the reign of Justinian I it was Tribonian, a notable jurist in the empire, who supervised the revision of the legal code known today as Corpus Juris Civilis. In the field of law, Justinian I's reforms had a clear effect on the evolution of jurisprudence, with his Corpus Juris Civilis becoming the basis for revived Roman law in the Western world, while Leo III's Ecloga influenced the formation of legal institutions in the Slavic world.^[205]

In the 10th century, Leo VI the Wise achieved the complete codification of the whole of Byzantine law in Greek with the Basilika, which became the foundation of all subsequent Byzantine law with an influence extending through to modern Balkan legal codes.^[104]

The concept of hospital as institution to offer medical care and possibility of a cure for the patients due to the ideals of Christian charity, rather than just merely a place to die, appeared in Byzantine Empire.^[206]

Although the concept of uroscopy was known to Galen, he did not see the importance of using it to localize the disease. It was under the Byzantines with physicians such of Theophilus Protospatharius that they realized the potential in uroscopy to determine disease in a time when no microscope or stethoscope existed. That practice eventually spread to the rest of Europe.^[207]

In medicine the works of Byzantine doctors, such as the Vienna Dioscorides (6th century), and works of Paul of Aegina (7th century) and Nicholas Myrepsos (late 13th century), continued to be used as the authoritative texts by Europeans through the Renaissance.

The first known example of separating conjoined twins happened in the Byzantine Empire in the 10th century when a pair of conjoined twins from Armenia came eventually to Constantinople. Many years later one of them died, so the surgeons in Constantinople decided to remove the body of the dead one. The result was partly successful as the surviving twin lived in three days before dying. But the fact that the second person survived for few days after separating it, was so impressive that it was mentioned a century and half years later again by historians. The next case of separating conjoined twins will be recorded first about 700 years later in the year 1689 in Germany.^[208]^[209]

Greek Fire, an incendirary weapon which could even burn on water is also attributed to the Byzantines. It played a crucial role when the Byzantine Empire defeated the Umayyad Caliphate during the Siege of Constantinople (717–718).^[210] The discovery is attributed to Callinicus of Heliopolis from Syria, a Byzantine Jew who fled during the Arab conquest of Syria. However, it has also been argued that no single person invented the Greek fire, but that it was rather “invented by the chemists in Constantinople who had inherited the discoveries of the Alexandrian chemical school...”.^[197]

The first example of a grenade also appeared in Byzantine Empire, where rudimentary incendiary grenades made of ceramic jars holding glass or nails were made and used on battlefields.^[211]^[212]^[213]

In the final century of the Empire, astronomy and other mathematical sciences were taught in Trebizond; medicine attracted the interest of almost all scholars.^[214]

The Fall of Constantinople in 1453 fueled the era later commonly known as "Renaissance” in Italy. During this period, refugee Byzantine scholars were principally responsible for carrying, in person and in writing, ancient Greek grammatical, literary studies, mathematical, and astronomical knowledge to early Renaissance Italy.^[215] They also brought with them classical learning and texts such of botany, medicine and zoology, and the Greek scholars brought important inputs to the West such of the works of Dioscorides and John Philoponus' criticism of Aristotelian physics.^[216] The latter served as an inspiration for Galileo Galilei in the Scientific Revolution.^[217]

Culture

Religion

The Byzantine Empire was a theocracy, said to be ruled by God working through the Emperor. Jennifer Fretland VanVoorst argues, "The Byzantine Empire became a theocracy in the sense that Christian values and ideals were the foundation of the empire's political ideals and heavily entwined with its political goals."^[218] Steven Runciman says in his book on The Byzantine Theocracy (2004):

The constitution of the Byzantine Empire was based on the conviction that it was the earthly copy of the Kingdom of Heaven. Just as God ruled in Heaven, so the Emperor, made in his image, should rule on earth and carry out his commandments ... It saw itself as a universal empire. Ideally, it should embrace all the peoples of the Earth who, ideally, should all be members of the one true Christian Church, its own Orthodox Church. Just as man was made in God's image, so man's kingdom on Earth was made in the image of the Kingdom of Heaven."^[219] The survival of the Empire in the East assured an active role of the Emperor in the affairs of the Church. The Byzantine state inherited from pagan times the administrative, and financial routine of administering religious affairs, and this routine was applied to the Christian Church. Following the pattern set by Eusebius of Caesarea, the Byzantines viewed the Emperor as a representative or messenger of Christ, responsible particularly for the propagation of Christianity among pagans, and for the "externals" of the religion, such as administration and finances. As Cyril Mango points out, the Byzantine political thinking can be summarised in the motto "One God, one empire, one religion".^[220]

The imperial role in the affairs of the Church never developed into a fixed, legally defined system.^[221] With the decline of Rome, and internal dissension in the other Eastern Patriarchates, the Church of Constantinople became, between the 6th and 11th centuries, the richest and most influential center of Christendom.^[222] Even when the Empire was reduced to only a shadow of its former self, the Church continued to exercise significant influence both inside and outside of the imperial frontiers. As George Ostrogorsky points out:

The Patriarchate of Constantinople remained the center of the Orthodox world, with subordinate metropolitan sees and archbishoprics in the territory of Asia Minor and the Balkans, now lost to Byzantium, as well as in Caucasus, Russia and Lithuania. The Church remained the most stable element in the Byzantine Empire.^[223]

The official state Christian doctrine was determined by the first seven ecumenical councils, and it was then the emperor's duty to impose it to his subjects. An imperial decree of 388, which was later incorporated into the Codex Justinianus, orders the population of the Empire "to assume the name of Catholic Christians", and regards all those who will not abide by the law as "mad and foolish persons"; as followers of "heretical dogmas".^[224]

Despite imperial decrees and the stringent stance of the state church itself, which came to be known as the Eastern Orthodox Church or Eastern Christianity, the latter never represented all Christians in Byzantium. Mango believes that, in the early stages of the Empire, the "mad and foolish persons", those labelled "heretics" by the state church, were the majority of the population.^[225] Besides the pagans, who existed until the end of the 6th century, and the Jews, there were many followers – sometimes even emperors – of various Christian doctrines, such as Nestorianism, Monophysitism, Arianism, and Paulicianism, whose teachings were in some opposition to the main theological doctrine, as determined by the Ecumenical Councils.^[226]

Another division among Christians occurred, when Leo III ordered the destruction of icons throughout the Empire. This led to a significant religious crisis, which ended in mid-9th century with the restoration of icons. During the same period, a new wave of pagans emerged in the Balkans, originating mainly from Slavic people. These were gradually Christianised, and by Byzantium's late stages, Eastern Orthodoxy represented most Christians and, in general, most people in what remained of the Empire.^[227]

Jews were a significant minority in the Byzantine state throughout its history, and, according to Roman law, they constituted a legally recognised religious group. In the early Byzantine period they were generally tolerated, but then periods of tensions and persecutions ensued. In any case, after the Arab conquests, the majority of Jews found themselves outside the Empire; those left inside the Byzantine borders apparently lived in relative peace from the 10th century onwards.^[228]

Georgian monasteries first appear in Constantinople and on Mount Olympos in northwestern Asia Minor in the second half of the ninth century, and from then on Georgians played an increasingly important role in the Empire.^[229]

The arts

Art and literature

Miniatures of the 6th-century Rabula Gospel display the more abstract and symbolic nature of Byzantine art.

Surviving Byzantine art is mostly religious and with exceptions at certain periods is highly conventionalised, following traditional models that translate carefully controlled church theology into artistic terms. Painting in fresco, illuminated manuscripts and on wood panel and, especially in earlier periods, mosaic were the main media, and figurative sculpture very rare except for small carved ivories. Manuscript painting preserved to the end some of the classical realist tradition that was missing in larger works.^[230] Byzantine art was highly prestigious and sought-after in Western Europe, where it maintained a continuous influence on medieval art until near the end of the period. This was especially so in Italy, where Byzantine styles persisted in modified form through the 12th century, and became formative influences on Italian Renaissance art. But few incoming influences affected Byzantine style. By means of the expansion of the Eastern Orthodox church, Byzantine forms and styles spread to all the Orthodox world and beyond.^[231] Influences from Byzantine architecture, particularly in religious buildings, can be found in diverse regions from Egypt and Arabia to Russia and Romania.

In Byzantine literature, four different cultural elements are recognised: the Greek, the Christian, the Roman, and the Oriental. Byzantine literature is often classified in five groups: historians and annalists, encyclopaedists (Patriarch Photios, Michael Psellus, and Michael Choniates are regarded as the greatest encyclopaedists of Byzantium) and essayists, and writers of secular poetry. The only genuine heroic epic of the Byzantines is the Digenis Acritas. The remaining two groups include the new literary species: ecclesiastical and theological literature, and popular poetry.^[232]

Of the approximately two to three thousand volumes of Byzantine literature that survive, only 330 consist of secular poetry, history, science and pseudo-science.^[232] While the most flourishing period of the secular literature of Byzantium runs from the 9th to the 12th century, its religious literature (sermons, liturgical books and poetry, theology, devotional treatises, etc.) developed much earlier with Romanos the Melodist being its most prominent representative.^[233]

Music

Late 4th century AD "Mosaic of the Musicians" with organ, aulos, and lyre from a Byzantine villa in Maryamin, Syria^[234]

The ecclesiastical forms of Byzantine music, composed to Greek texts as ceremonial, festival, or church music,^[235] are, today, the most well-known forms. Ecclesiastical chants were a fundamental part of this genre. Greek and foreign historians agree that the ecclesiastical tones and in general the whole system of Byzantine music is closely related to the ancient Greek system.^[236] It remains the oldest genre of extant music, of which the manner of performance and (with increasing accuracy from the 5th century onwards) the names of the composers, and sometimes the particulars of each musical work's circumstances, are known.

The 9th century Persian geographer Ibn Khurradadhbih (d. 911); in his lexicographical discussion of instruments cited the lyra (lūrā) as the typical instrument of the Byzantines along with the urghun (organ), shilyani (probably a type of harp or lyre) and the salandj (probably a bagpipe).^[237] The first of these, the early bowed stringed instrument known as the Byzantine lyra, would come to be called the lira da braccio,^[238] in Venice, where it is considered by many to have been the predecessor of the contemporary violin, which later flourished there.^[239] The bowed "lyra" is still played in former Byzantine regions, where it is known as the Politiki lyra (lit. "lyra of the City" i.e. Constantinople) in Greece, the Calabrian lira in Southern Italy, and the Lijerica in Dalmatia. The second instrument, the organ, originated in the Hellenistic world (see Hydraulis) and was used in the Hippodrome during races.^[240]^[241] A pipe organ with "great leaden pipes" was sent by the emperor Constantine V to Pepin the Short, King of the Franks in 757. Pepin's son Charlemagne requested a similar organ for his chapel in Aachen in 812, beginning its establishment in Western church music.^[241] The final Byzantine instrument, the aulos was a double reeded woodwind like the modern oboe or Armenian duduk. Other forms include the plagiaulos (πλαγίαυλος, from πλάγιος "sideways"), which resembled the flute,^[242] and the askaulos (ἀσκός askos – wine-skin), a bagpipe.^[243] These bagpipes, also known as Dankiyo (from ancient Greek: angion (Τὸ ἀγγεῖον) "the container"), had been played even in Roman times. Dio Chrysostom wrote in the 1st century of a contemporary sovereign (possibly Nero) who could play a pipe (tibia, Roman reedpipes similar to Greek aulos) with his mouth as well as by tucking a bladder beneath his armpit.^[244] The bagpipes continued to be played throughout the empire's former realms through to the present. (See Balkan Gaida, Greek Tsampouna, Pontic Tulum, Cretan Askomandoura, Armenian Parkapzuk, and Romanian Cimpoi.)

Cuisine

The Byzantine culture was, initially, the same as Late Greco-Roman, but over the following millennium of the empire's existence it slowly changed into something more similar to modern Balkan and Anatolian culture. The cuisine still relied heavily on the Greco-Roman fish-sauce condiment garos, but it also contained foods still familiar today, such as the cured meat pastirma (known as "paston" in Byzantine Greek),^[245]^[246]^[247] baklava (known as koptoplakous κοπτοπλακοῦς),^[248] tiropita (known as plakountas tetyromenous or tyritas plakountas),^[249] and the famed medieval sweet wines (Commandaria and the eponymous Rumney wine). Retsina, wine flavored with pine resin, was also drunk, as it still is in Greece today, producing similar reactions from unfamiliar visitors; "To add to our calamity the Greek wine, on account of being mixed with pitch, resin, and plaster was to us undrinkable," complained Liutprand of Cremona, who was the ambassador sent to Constantinople in 968 by the German Holy Roman Emperor Otto I.^[250] The garos fish sauce condiment was also not much appreciated by the unaccustomed; Liutprand of Cremona described being served food covered in an "exceedingly bad fish liquor."^[250] The Byzantines also used a soy sauce like condiment, murri, a fermented barley sauce, which, like soy sauce, provided umami flavoring to their dishes.^[251]^[252]

Flags and insignia

For most of its history, the Byzantine Empire did not know or use heraldry in the West European sense. Various emblems (Template:Lang-el, sēmeia; sing. σημείον, sēmeion) were used in official occasions and for military purposes, such as banners or shields displaying various motifs such as the cross or the labarum. The use of the cross, and of images of Christ, the Virgin Mary and various saints is also attested on seals of officials, but these were personal rather than family emblems.^[253]

Language

Apart from the Imperial court, administration and military, the primary language used in the eastern Roman provinces even before the decline of the Western Empire was Greek, having been spoken in the region for centuries before Latin.^[255] Following Rome's conquest of the east its 'Pax Romana', inclusionist political practices and development of public infrastructure, facilitated the further spreading and entrenchment of Greek language in the east. Indeed, early on in the life of the Roman Empire, Greek had become the common language of the Church, the language of scholarship and the arts, and, to a large degree, the lingua franca for trade between provinces and with other nations.^[256] Greek for a time became diglossic with the spoken language, known as Koine (eventually evolving into Demotic Greek), used alongside an older written form until Koine won out as the spoken and written standard.^[257]

The use of Latin as the language of administration persisted until adaptation of Greek as official language by Heraclius in the 7th century. Scholarly Latin would rapidly fall into disuse among the educated classes although the language would continue to be at least a ceremonial part of the Empire's culture for some time.^[258] Additionally, Latin remained a minority language in the Empire, mainly in Italian peninsula and along Dalmatian coast, eventually developing into various Romance languages like Dalmatian.^[259]

Many other languages existed in the multi-ethnic Empire, and some of these were given limited official status in their provinces at various times. Notably, by the beginning of the Middle Ages, Syriac had become more widely used by the educated classes in the far eastern provinces.^[260] Similarly Coptic, Armenian, and Georgian became significant among the educated in their provinces,^[261] and later foreign contacts made Old Church Slavic, Middle Persian, and Arabic important in the Empire and its sphere of influence.^[262]

Aside from these, since Constantinople was a prime trading center in the Mediterranean region and beyond, virtually every known language of the Middle Ages was spoken in the Empire at some time, even Chinese.^[263] As the Empire entered its final decline, the Empire's citizens became more culturally homogeneous and the Greek language became integral to their identity and religion.^[264]

Recreation

Byzantines were avid players of tavli (Byzantine Greek: τάβλη), a game known in English as backgammon, which is still popular in former Byzantine realms, and still known by the name tavli in Greece.^[265] Byzantine nobles were devoted to horsemanship, particularly tzykanion, now known as polo. The game came from Sassanid Persia in the early period and a Tzykanisterion (stadium for playing the game) was built by Theodosius II (r. 408–450) inside the Great Palace of Constantinople. Emperor Basil I (r. 867–886) excelled at it; Emperor Alexander (r. 912–913) died from exhaustion while playing, Emperor Alexios I Komnenos (r. 1081–1118) was injured while playing with Tatikios, and John I of Trebizond (r. 1235–1238) died from a fatal injury during a game.^[266]^[267] Aside from Constantinople and Trebizond, other Byzantine cities also featured tzykanisteria, most notably Sparta, Ephesus, and Athens, an indication of a thriving urban aristocracy.^[268] The game was introduced to the West by crusaders, who developed a taste for it particularly during the pro-Western reign of emperor Manuel I Komnenos.

Economy

The Byzantine economy was among the most advanced in Europe and the Mediterranean for many centuries. Europe, in particular, could not match Byzantine economic strength until late in the Middle Ages. Constantinople operated as a prime hub in a trading network that at various times extended across nearly all of Eurasia and North Africa, in particular as the primary western terminus of the famous Silk Road. Until the first half of the 6th century and in sharp contrast with the decaying West, the Byzantine economy was flourishing and resilient.^[269]

The Plague of Justinian and the Arab conquests would represent a substantial reversal of fortunes contributing to a period of stagnation and decline. Isaurian reforms and, in particular, Constantine V's repopulation, public works and tax measures, marked the beginning of a revival that continued until 1204, despite territorial contraction.^[270] From the 10th century until the end of the 12th, the Byzantine Empire projected an image of luxury and travellers were impressed by the wealth accumulated in the capital.^[271]

The Fourth Crusade resulted in the disruption of Byzantine manufacturing and the commercial dominance of the Western Europeans in the eastern Mediterranean, events that amounted to an economic catastrophe for the Empire.^[271] The Palaiologoi tried to revive the economy, but the late Byzantine state would not gain full control of either the foreign or domestic economic forces. Gradually, it also lost its influence on the modalities of trade and the price mechanisms, and its control over the outflow of precious metals and, according to some scholars, even over the minting of coins.^[272]

One of the economic foundations of Byzantium was trade, fostered by the maritime character of the Empire. Textiles must have been by far the most important item of export; silks were certainly imported into Egypt, and appeared also in Bulgaria, and the West.^[273] The state strictly controlled both the internal and the international trade, and retained the monopoly of issuing coinage, maintaining a durable and flexible monetary system adaptable to trade needs.^[274]

The government attempted to exercise formal control over interest rates, and set the parameters for the activity of the guilds and corporations, in which it had a special interest. The emperor and his officials intervened at times of crisis to ensure the provisioning of the capital, and to keep down the price of cereals. Finally, the government often collected part of the surplus through taxation, and put it back into circulation, through redistribution in the form of salaries to state officials, or in the form of investment in public works.^[274]

Legacy

Byzantium has been often identified with absolutism, orthodox spirituality, orientalism and exoticism, while the terms "Byzantine" and "Byzantinism" have been used as bywords for decadence, complex bureaucracy, and repression. In the countries of Central and Southeast Europe that exited the Eastern Bloc in the late 1980s and early 1990s, the assessment of Byzantine civilisation and its legacy was strongly negative due to their connection with an alleged "Eastern authoritarianism and autocracy." Both Eastern and Western European authors have often perceived Byzantium as a body of religious, political, and philosophical ideas contrary to those of the West. Even in 19th-century Greece, the focus was mainly on the classical past, while Byzantine tradition had been associated with negative connotations.^[275]

This traditional approach towards Byzantium has been partially or wholly disputed and revised by modern studies, which focus on the positive aspects of Byzantine culture and legacy. Averil Cameron regards as undeniable the Byzantine contribution to the formation of the medieval Europe, and both Cameron and Obolensky recognise the major role of Byzantium in shaping Orthodoxy, which in turn occupies a central position in the history and societies of Greece, Romania, Bulgaria, Russia, Georgia, Serbia and other countries.^[276] The Byzantines also preserved and copied classical manuscripts, and they are thus regarded as transmitters of the classical knowledge, as important contributors to the modern European civilization, and as precursors of both the Renaissance humanism and the Slav Orthodox culture.^[277]

As the only stable long-term state in Europe during the Middle Ages, Byzantium isolated Western Europe from newly emerging forces to the East. Constantly under attack, it distanced Western Europe from Persians, Arabs, Seljuk Turks, and for a time, the Ottomans. From a different perspective, since the 7th century, the evolution and constant reshaping of the Byzantine state were directly related to the respective progress of Islam.^[277]

Following the conquest of Constantinople by the Ottoman Turks in 1453, Sultan Mehmed II took the title "Kaysar-i Rûm" (the Ottoman Turkish equivalent of Caesar of Rome), since he was determined to make the Ottoman Empire the heir of the Eastern Roman Empire.^[278] According to Cameron, regarding themselves as "heirs" of Byzantium, the Ottomans preserved important aspects of its tradition, which in turn facilitated an "Orthodox revival" during the post-communist period of the Eastern European states.^[277]

Annotations

^ "Romania" was a popular name of the empire used mainly unofficially, which meant "land of the Romans".^[12] After 1081, it occasionally appears in official Byzantine documents as well. In 1204, the leaders of the Fourth Crusade gave the name Romania to the newly founded Latin Empire.^[13] The term does not refer to modern Romania.

Notes

^ Kaldellis 2015, p. 6
^ "Byzantine Empire". Encyclopædia Britannica.
^ Kazhdan & Epstein 1985, p. 1.
^ ^a ^b Millar 2006, pp. 2, 15; James 2010, p. 5; Freeman 1999, pp. 431, 435–437, 459–462; Baynes & Moss 1948, p. xx; Ostrogorsky 1969, p. 27; Kaldellis 2007, pp. 2–3; Kazhdan & Constable 1982, p. 12; Norwich 1998, p. 383.
^ Ostrogorsky 1969, pp. 105–107, 109; Norwich 1998, p. 97; Haywood 2001, pp. 2.17, 3.06, 3.15.
^ Haldon, John; Haldon, Shelby Cullom Davis 3.0. Professor of European History Professor of History Hellenic Studies John (2002). Warfare, State And Society In The Byzantine World 560–1204. p. 47. ISBN 9781135364373.{{cite book}}: CS1 maint: numeric names: authors list (link)
^ Pounds, Norman John Greville. An Historical Geography of Europe, 1500–1840, p. 124. CUP Archive, 1979. ISBN 0-521-22379-2.
^ "The End of the Byzantine Empire, 1081–1453". Archived from the original on 24 September 2015. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
^ William Miller, Trebizond: The last Greek Empire of the Byzantine Era: 1204–1461, 1926 (Chicago: Argonaut, 1969), pp. 100–106
^ Fox, What, If Anything, Is a Byzantine?; Rosser 2011, p. 1
^ Rosser 2011, p. 2.
^ Fossier & Sondheimer 1997, p. 104.
^ Wolff 1948, pp. 5–7, 33–34.
^ Fatouros 1992, p. 862: "Γραικία: Graecia, imperium byzantinum" (Theodori Studitae Epistulae, 145,19 and 458,28).
^ Cinnamus 1976, p. 240.
^ Institute for Neohellenic Research 2005, p. 8.
^ Ahrweiler & Laiou 1998, p. 3; Mango 2002, p. 13.
^ Gabriel 2002, p. 277.
^ Ahrweiler & Laiou 1998, p. vii; Davies 1996, p. 245; Gross 1999, p. 45; Lapidge, Blair & Keynes 1998, p. 79; Millar 2006, pp. 2, 15; Moravcsik 1970, pp. 11–12; Ostrogorsky 1969, pp. 28, 146; Browning 1983, p. 113.
^ Klein 2004, p. 290 (Note #39); Annales Fuldenses, 389: "Mense lanuario c. epiphaniam Basilii, Graecorum imperatoris, legati cum muneribus et epistolis ad Hludowicum regem Radasbonam venerunt ...".
^ Fouracre & Gerberding 1996, p. 345: "The Frankish court no longer regarded the Byzantine Empire as holding valid claims of universality; instead it was now termed the 'Empire of the Greeks'."
^ Garland 1999, p. 87.
^ Tarasov & Milner-Gulland 2004, p. 121; El-Cheikh 2004, p. 22
^ Eusebius, IV, lxii.
^ ^a ^b Ostrogorsky 1959, p. 21; Wells 1922, Chapter 33.
^ Bury 1923, p. 1; Kuhoff 2002, pp. 177–178.
^ Bury 1923, p. 1; Esler 2004, p. 1081; Gibbon 1906, Volume III, Part IV, Chapter 18, p. 168; Teall 1967, pp. 13, 19–23, 25, 28–30, 35–36
^ Bury 1923, p. 63; Drake 1995, p. 5; Grant 1975, pp. 4, 12.
^ Bowersock 1997, p. 79
^ Greatrex & Lieu 2002, p. 1
^ Friell & Williams 2005, p. 105
^ Perrottet 2004, p. 190
^ Cameron 2009, pp. 54, 111, 153.
^ Alemany 2000, p. 207; Bayless 1976, pp. 176–177; Treadgold 1997, pp. 184, 193.
^ Cameron 2009, p. 52.
^ ^a ^b Burns 1991, pp. 65, 76–77, 86–87
^ Lenski 1999, pp. 428–429.
^ Grierson 1999, p. 17.
^ Postan, Miller & Postan 1987, p. 140.
^ Chapman 1971, p. 210
^ Meier 2003, p. 290.
^ Wickham 2009, p. 90
^ Haldon 1990, p. 17
^ Evans 2005, p. 104
^ Gregory 2010, p. 150.
^ Merryman & Perez-Perdomo 2007, p. 7
^ Gregory 2010, p. 137; Meier 2003, pp. 297–300.
^ Gregory 2010, p. 145.
^ Evans 2005, p. xxv.
^ ^a ^b Bury 1923, pp. 180–216; Evans 2005, pp. xxvi, 76.
^ Sotinel 2005, p. 278; Treadgold 1997, p. 187.
^ Bury 1923, pp. 236–258; Evans 2005, p. xxvi.
^ Bury 1923, pp. 259–281; Evans 2005, p. 93.
^ Bury 1923, pp. 286–288; Evans 2005, p. 11.
^ Greatrex 2005, p. 489; Greatrex & Lieu 2002, p. 113
^ Bury 1920, "Preface", pp. v–vi
^ Evans 2005, pp. 11, 56–62; Sarantis 2009, passim.
^ Evans 2005, p. 65
^ Evans 2005, p. 68
^ Cameron 2009, pp. 113, 128.
^ Bray 2004, pp. 19–47; Haldon 1990, pp. 110–111; Treadgold 1997, pp. 196–197.
^ ^a ^b Louth 2005, pp. 113–115; Nystazopoulou-Pelekidou 1970, passim; Treadgold 1997, pp. 231–232.
^ Fine 1983, p. 33
^ Foss 1975, p. 722.
^ Haldon 1990, p. 41; Speck 1984, p. 178.
^ Haldon 1990, pp. 42–43.
^ Grabar 1984, p. 37; Cameron 1979, p. 23.
^ Cameron 1979, pp. 5–6, 20–22.
^ Norwich 1998, p. 93
^ Haldon 1990, p. 46; Baynes 1912, passim; Speck 1984, p. 178.
^ Foss 1975, pp. 746–747.
^ Haldon 1990, p. 50.
^ Haldon 1990, pp. 61–62.
^ Haldon 1990, pp. 102–114; Laiou & Morisson 2007, p. 47.
^ Laiou & Morisson 2007, pp. 38–42, 47; Wickham 2009, p. 260.
^ Haldon 1990, pp. 208–215; Kaegi 2003, pp. 236, 283.
^ Heather 2005, p. 431.
^ Haldon 1990, pp. 43–45, 66, 114–115
^ ^a ^b Haldon 1990, pp. 66–67.
^ Haldon 1990, p. 71.
^ Haldon 1990, pp. 70–78, 169–171; Haldon 2004, pp. 216–217; Kountoura-Galake 1996, pp. 62–75.
^ Cameron 2009, pp. 67–68.
^ Cameron 2009, pp. 167–170; Garland 1999, p. 89.
^ Parry 1996, pp. 11–15.
^ Cameron 2009, p. 267.
^ ^a ^b ^c ^d Browning 1992, p. 95.
^ Treadgold 1997, pp. 432–433.
^ ^a ^b ^c ^d Browning 1992, p. 96.
^ ^a ^b Karlin-Heyer 1967, p. 24.
^ ^a ^b ^c Browning 1992, p. 101.
^ Browning 1992, p. 107.
^ Browning 1992, p. 108.
^ Browning 1992, pp. 112.
^ Browning 1992, pp. 113.
^ ^a ^b ^c Browning 1992, p. 116.
^ Browning 1992, p. 100.
^ Browning 1992, pp. 102–103.
^ Browning 1992, pp. 103–105.
^ Browning 1992, pp. 106–107.
^ Browning 1992, pp. 112–113.
^ ^a ^b ^c Browning 1992, p. 115.
^ ^a ^b ^c Browning 1992, pp. 114–115.
^ ^a ^b Cameron 2009, p. 77.
^ ^a ^b Browning 1992, pp. 97–98.
^ Browning 1992, pp. 98–99.
^ Browning 1992, pp. 98–109.
^ Laiou & Morisson 2007, pp. 130–131; Pounds 1979, p. 124.
^ Duiker & Spielvogel 2010, p. 317.
^ Timberlake 2004, p. 14.
^ Patterson 1995, p. 15.
^ Cameron 2009, p. 83.
^ Treadgold 1997, pp. 548–549.
^ ^a ^b Markham, "The Battle of Manzikert".
^ Vasiliev 1928–1935, "Relations with Italy and Western Europe".
^ Hooper & Bennett 1996, p. 82; Stephenson 2000, p. 157.
^ Šišić 1990.
^ "Byzantine Empire". Encyclopædia Britannica. 2002.; Markham, "The Battle of Manzikert".
^ ^a ^b Browning 1992, p. 190.
^ Cameron 2006, pp. 46.
^ Cameron 2006, pp. 42.
^ Cameron 2006, pp. 47.
^ ^a ^b Browning 1992, pp. 198–208.
^ ^a ^b Browning 1992, p. 218.
^ Magdalino 2002, p. 124 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).
^ ^a ^b "Byzantine Empire". Encyclopædia Britannica.
^ Birkenmeier 2002.
^ ^a ^b Harris 2014; Read 2000, p. 124; Watson 1993, p. 12.
^ Komnene 1928, Alexiad, 10.261
^ Komnene 1928, Alexiad, 11.291
^ Komnene 1928, Alexiad, 13.348–13.358; Birkenmeier 2002, p. 46.
^ Norwich 1998, p. 267.
^ Ostrogorsky 1969, p. 377.
^ Birkenmeier 2002, p. 90.
^ Cinnamus 1976, pp. 74–75.
^ Harris 2014, p. 84.
^ Brooke 1962, p. 326.
^ Magdalino 2002, p. 74 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).
^ Sedlar 1994, p. 372.
^ Magdalino 2002, p. 67 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).
^ Birkenmeier 2002, p. 128.
^ Birkenmeier 2002, p. 196.
^ Birkenmeier 2002, pp. 185–186.
^ Birkenmeier 2002, p. 1.
^ Day 1977, pp. 289–290; Harvey 2003.
^ Diehl 1948.
^ Tatakes & Moutafakis 2003, p. 110.
^ Norwich 1998, p. 291.
^ ^a ^b ^c Norwich 1998, p. 292.
^ ^a ^b Ostrogorsky 1969, p. 397.
^ Harris 2014, p. 118.
^ Norwich 1998, p. 293.
^ Norwich 1998, pp. 294–295.
^ Angold 1997; Paparrigopoulos & Karolidis 1925, p. 216
^ Vasiliev 1928–1935, "Foreign Policy of the Angeloi".
^ Norwich 1998, p. 299.
^ ^a ^b ^c ^d "The Fourth Crusade and the Latin Empire of Constantinople". Encyclopædia Britannica.
^ Britannica Concise, Siege of Zara Archived 6 July 2007 at the Wayback Machine.
^ Geoffrey of Villehardouin 1963, p. 46.
^ Norwich 1998, p. 301.
^ Choniates 1912, The Sack of Constantinople.
^ Norwich 1982, pp. 127–143.
^ A. A. Vasiliev, "The Foundation of the Empire of Trebizond (1204–1222)", Speculum, 11 (1936), pp. 18f
^ Kean 2006; Madden 2005, p. 162.
^ Köprülü 1992, pp. 33–41.
^ Madden 2005, p. 179; Reinert 2002, p. 260.
^ Reinert 2002, p. 257.
^ Reinert 2002, p. 257.
^ Reinert 2002, p. 261.
^ Reinert 2002, p. 268.
^ Reinert 2002, p. 270.
^ Runciman 1990, pp. 71–72 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).
^ ^a ^b Runciman 1990, pp. 84–85 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).
^ Runciman 1990, pp. 84–86 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).
^ Hindley 2004, p. 300.
^ Miller 1907, p. 236
^ Lowry 2003, pp. 115–116.
^ Clark 2000, p. 213.
^ Seton-Watson 1967, p. 31.
^ Mango 2007, pp. 259–260.
^ Louth 2005, p. 291; Neville 2004, p. 7.
^ Cameron 2009, pp. 138–142; Mango 2007, p. 60.
^ Cameron 2009, pp. 157–158; Neville 2004, p. 34.
^ Neville 2004, p. 13.
^ ^a ^b Neumann 2006, pp. 869–871.
^ Chrysos 1992, p. 35.
^ Antonucci 1993, pp. 11–13.
^ Antonucci 1993, pp. 11–13; Seeck 1876, pp. 31–33
^ Bury & Philotheus 1911, p. 93.
^ Dennis 1985, p. 125.
^ Obolensky 1994, p. 3.
^ Anastos 1962, p. 409.
^ Alexander Jones, "Book Review, Archimedes Manuscript" American Mathematical Society, May 2005.
^ "Pendentive – architecture".
^ Field, J.V; Wright, M.T (22 August 2006). "Gears from the Byzantines: A portable sundial with calendrical gearing". Annals of Science. 42 (2): 87. doi:10.1080/00033798500200131.
^ "Anonymous, Byzantine sundial-cum-calendar". brunelleschi.imss.fi.it.
^ "Sundial info" (PDF). academy.edu.gr.
^ ^a ^b Partington, J. R. (1999). "A History of Greek Fire and Gunpowder". The Johns Hopkins University Press. page 13
^ Prioreschi, Plinio. 2004. A History of Medicine: Byzantine and Islamic medicine. Horatius Press. Page 42.
^ Pevny, Olenka Z. (2000). "Perceptions of Byzantium and Its Neighbors: 843-1261". Yale University Press. p. 94-95.
^ http://homepages.wmich.edu/~mcgrew/philfall.htm
^ Wildberg, Christian (8 March 2018). Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University – via Stanford Encyclopedia of Philosophy.
^ Lindberg, David. (1992) The Beginnings of Western Science. University of Chicago Press. Page 162.
^ Wikander, Orjan. 2000. "Handbook of Ancient Water Technology". Brill. Page 383-384.
^ "Boat mills: water powered, floating factories". LOW-TECH MAGAZINE.
^ Troianos & Velissaropoulou-Karakosta 1997, p. 340
^ Lindberg, David. (1992) The Beginnings of Western Science. University of Chicago Press. Page 349.
^ Prioreschi, Plinio. 2004. A History of Medicine: Byzantine and Islamic medicine. Horatius Press. Page 146.
^ "The Case of Conjoined Twins in 10th Century Byzantium - Medievalists.net". 4 January 2014.
^ Montandon, Denys (December 2015). "THE UNSPEAKABLE HISTORY OF THORACOPAGUS TWINS' SEPARATION" (PDF). denysmontandon.com.
^ "Greek fire – weaponry".
^ Tucker, Spencer C. 2011. “The Encyclopedia of the Vietnam War: A Political, Social, and Military History”. ABC-CLIO. Page 450.
^ "Greek Fire Grenades".
^ "Greek Fire".
^ Tatakes & Moutafakis 2003, p. 189.
^ Robins 1993, p. 8.
^ Lindberg, David. (1992). The Beginnings of Western Science. University of Chicago Press. Page 162.
^ https://plato.stanford.edu/entries/philoponus/
^ Jennifer Fretland VanVoorst (2012). The Byzantine Empire. Capstone. p. 14. ISBN 9780756545659.
^ Runciman 2004, pp. 1–2, 162–163.
^ Mango 2007, p. 108.
^ Meyendorff 1982, p. 13.
^ Meyendorff 1982, p. 19.
^ Meyendorff 1982, p. 130.
^ Justinian Code: Book 1, Title 1; Blume 2008, Headnote C. 1.1; Mango 2007, p. 108.
^ Mango 2007, pp. 108–109.
^ Blume 2008, Headnote C. 1.1; Mango 2007, pp. 108–109, 115–125.
^ Mango 2007, pp. 115–125.
^ Mango 2007, pp. 111–114.
^ Whittow 1996, p. 200.
^ Rice 1968; Weitzmann 1982.
^ Rice 1968, Chapters 15–17; Weitzmann 1982, Chapters 2–7; Evans 2004, pp. 389–555.
^ ^a ^b Mango 2007, pp. 275–276.
^ "Byzantine Literature". Catholic Encyclopedia.
^ Ring, Trudy (1994), International Dictionary of Historic Places: Middle East and Africa, vol. 4, Taylor & Francis, ISBN 1884964036
^ The Columbia Electronic Encyclopedia, 6th ed. 2007 – "Byzantine music"
^ "Ecumenical Patriarchate — Byzantine Music". ec-patr.net.
^ Kartomi 1990, p. 124.
^ Encyclopædia Britannica (2009), "lira", Encyclopædia Britannica
^ Arkenberg, Rebecca (October 2002), Renaissance Violins, Metropolitan Museum of Art, retrieved 22 September 2006
^ Journal of Sport History, Vol. 8, No. 3 (Winter, 1981) p. 44.
^ ^a ^b Douglas Earl Bush, Richard Kassel editors, The Organ: An Encyclopedia Routledge. 2006. ISBN 978-0-415-94174-7. p. 327
^ Howard, Albert A. (1893). "The Αὐλός or Tibia". Harvard Studies in Classical Philology. 4. Department of the Classics, Harvard University: 1–60. doi:10.2307/310399. JSTOR 310399.
^ Flood, William Henry Grattan. "The story of the bagpipe". Рипол Классик. ISBN 978-1-176-34422-8.
^ "Discourses by Dio Chrysostom (Or. 71.9)". The Seventy-first Discourse: On the Philosopher (Volume V). Loeb Classical Library. p. 173. Retrieved 25 June 2016.
^ Ash 1995, p. 224: "Having inherited pastirma from the Byzantines, the Turks took it with them when they conquered Hungary and Romania."
^ Davidson 2014, "Byzantine cookery", pp. 123–124: "This is certainly true of Byzantine cuisine. Dried meat, a forerunner of the pastirma of modern Turkey, became a delicacy."
^ Dalby et al. 2013, p. 81: "paston or tarichon...Cured meats were either eaten raw or cooked in pasto-mageireia with bulgur and greens, mainly cabbage."
^ Ash 1995, p. 223; Faas 2005, p. 184; Vryonis 1971, p. 482.
^ Faas 2005, pp. 184–185; Vryonis 1971, p. 482; Salaman 1986, pp. 184.
^ ^a ^b Halsall, Paul (January 1996). "Medieval Sourcebook: Liutprand of Cremona: Report of his Mission to Constantinople". Internet History Sourcebooks Project. Fordham University. Retrieved 25 June 2016.{{cite web}}: CS1 maint: year (link)
^ Jayyusi & Marín 1994, p. 729.
^ Perry, Charles (31 October 2001). "The Soy Sauce That Wasn't". Los Angeles Times. Retrieved 25 June 2016.
^ Kazhdan 1991, pp. 472, 999.
^ Dawkins, R.M. 1916. Modern Greek in Asia Minor. A study of dialect of Silly, Cappadocia and Pharasa. Cambridge: Cambridge University Press.
^ Millar 2006, p. 279.
^ Bryce 1901, p. 59; McDonnell 2006, p. 77; Millar 2006, pp. 97–98; Oikonomides 1999, pp. 12–13.
^ Oikonomides 1999, pp. 12–13.
^ Apostolides 1992, pp. 25–26; Wroth 1908, Introduction, Section 6
^ Sedlar 1994, pp. 403–440.
^ Beaton 1996, p. 10; Jones 1986, p. 991; Versteegh 1977, Chapter 1.
^ Campbell 2000, p. 40; Hacikyan et al. 2002, Part 1
^ Baynes 1907, p. 289; Gutas 1998, Chapter 7, Section 4; Comrie 1987, p. 129.
^ Beckwith 1993, p. 171; Halsall 1998; Oikonomides 1999, p. 20.
^ Kaldellis 2007, Chapter 6; Nicol 1993, Chapter 5.
^ ^a ^b Austin 1934, pp. 202–205.
^ Kazhdan 1991.
^ Anna Komnene,The Alexiad, Book XIV, Chapter IV, translator Elizabeth Dawes
^ Laiou 2002, p. 643 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help).
^ Laiou & Morisson 2007, pp. 1, 23–38.
^ Laiou & Morisson 2007, pp. 3, 45, 49–50, 231; Magdalino 2002, p. 532 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).
^ ^a ^b Laiou & Morisson 2007, pp. 90–91, 127, 166–169, 203–204; Magdalino 2002, p. 535 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).
^ Matschke 2002, pp. 805–806.
^ Laiou 2002, p. 723 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help); Laiou & Morisson 2007, p. 13.
^ ^a ^b Laiou 2002, pp. 3–4 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help); Laiou & Morisson 2007, p. 18.
^ Cameron 2009, pp. 277–281.
^ Cameron 2009, pp. 186–277.
^ ^a ^b ^c Cameron 2009, p. 261.
^ Béhar 1999, p. 38; Bideleux & Jeffries 1998, p. 71.

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Geoffrey of Villehardouin (1963). "The Conquest of Constantinople". Chronicles of the Crusades (translated by Margaret R. Shaw). Penguin Classics. ISBN 0-14-044124-7. {{cite book}}: Invalid |ref=harv (help)
Komnene, Anna (1928). "Books X-XIII". The Alexiad (translated by Elizabeth A. S. Dawes). Internet Medieval Sourcebook. {{cite book}}: Invalid |ref=harv (help)
Seeck, Otto, ed. (1876). Notitia Dignitatum; accedunt Notitia Urbis Constantinopolitanae Laterculi Prouinciarum. Berlin: Weidmann. {{cite book}}: Invalid |ref=harv (help)
Thurn, Hans, ed. (1973). Ioannis Scylitzae Synopsis historiarum. Berlin-New York: De Gruyter. ISBN 9783110022858. {{cite book}}: Invalid |ref=harv (help)

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Ahrweiler, Hélène; Laiou, Angeliki E. (1998). "Preface". Studies on the Internal Diaspora of the Byzantine Empire. Washington, DC: Dumbarton Oaks. ISBN 0-88402-247-1. {{cite book}}: Invalid |ref=harv (help)
Anastos, Milton V. (1962). "The History of Byzantine Science. Report on the Dumbarton Oaks Symposium of 1961". Dumbarton Oaks Papers. 16: 409–411. doi:10.2307/1291170. ISSN 0070-7546. JSTOR 1291170. {{cite journal}}: Invalid |ref=harv (help)
Angold, Michael (1997). The Byzantine Empire, 1025–1204: A Political History. London: Longman. ISBN 978-0-582-29468-4. {{cite book}}: Invalid |ref=harv (help)
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Apostolides, Sophocles Evangelinus (1992). Greek Lexicon of the Roman and Byzantine Periods. Hildesheim: Georg Olms. ISBN 3-487-05765-4. {{cite book}}: Invalid |ref=harv (help)
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Austin, Roland G. (1934). "Zeno's Game of τάβλη". The Journal of Hellenic Studies. 54 (2): 202–205. doi:10.2307/626864. JSTOR 626864. {{cite journal}}: Invalid |ref=harv (help)
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Baynes, Norman Hepburn; Moss, Henry St. Lawrence Beaufort, eds. (1948). Byzantium: An Introduction to East Roman Civilization. Oxford: Clarendon Press. {{cite book}}: Invalid |ref=harv (help)
Baynes, Spencer (1907). "Vlachs". Encyclopædia Britannica (11th ed.). New York. {{cite book}}: Invalid |ref=harv (help)CS1 maint: location missing publisher (link)
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Clark, Victoria (2000). Why Angels Fall: A Journey through Orthodox Europe from Byzantium to Kosovo. London: Macmillan. ISBN 0-312-23396-5. {{cite book}}: Invalid |ref=harv (help)
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Comrie, Bernard (1987). "Russian". In Shopen, Timothy (ed.). Languages and Their Status. Philadelphia: University of Pennsylvania Press. pp. 91–152. ISBN 0-8122-1249-5. {{cite book}}: Invalid |ref=harv (help)
Dalby, Andrew; Bourbou, Chryssi; Koder, Johannes; Leontsinē, Maria (2013). Flavours and Delights: Tastes and Pleasures of Ancient and Byzantine Cuisine. Athens and Thessaloniki: Armos Publications. ISBN 9789605277475. {{cite book}}: Invalid |ref=harv (help)
Davidson, Alan (2014). The Oxford Companion to Food. Oxford: Oxford University Press. ISBN 9780199677337. {{cite book}}: Invalid |ref=harv (help)
Davies, Norman (1996). Europe: A History. Oxford: Oxford University Press. ISBN 0-19-820171-0. {{cite book}}: Invalid |ref=harv (help)
Day, Gerald W. (1977). "Manuel and the Genoese: A Reappraisal of Byzantine Commercial Policy in the Late Twelfth Century". The Journal of Economic History. 37 (2): 289–301. doi:10.1017/S0022050700096947. JSTOR 2118759. {{cite journal}}: Invalid |ref=harv (help)
Dennis, George T. (1985). Three Byzantine Military Treatises. Washington, DC: Dumbarton Oaks. {{cite book}}: Invalid |ref=harv (help)
Diehl, Charles (1948). "Byzantine Art". In Baynes, Norman Hepburn; Moss, Henry St. Lawrence Beaufort (eds.). Byzantium: An Introduction to East Roman Civilization. Oxford: Clarendon. OCLC 1058121. {{cite book}}: Invalid |ref=harv (help)
Drake, H. A. (1995). "Constantine and Consensus". Church History. 64 (1): 1–15. doi:10.2307/3168653. JSTOR 3168653. {{cite journal}}: Invalid |ref=harv (help)
Duiker, William J.; Spielvogel, Jackson J. (2010). The Essential World History. Boston: Wadsworth. ISBN 978-0-495-90227-0. {{cite book}}: Invalid |ref=harv (help)
El-Cheikh, Nadia Maria (2004). Byzantium Viewed by the Arabs. Cambridge, MA: Harvard University Press. ISBN 0-932885-30-6. {{cite book}}: Invalid |ref=harv (help)
Esler, Philip Francis (2004). The Early Christian World. New York and London: Routledge. ISBN 0-415-33312-1. {{cite book}}: Invalid |ref=harv (help)
Evans, James Allan Stewart (2005). The Emperor Justinian and the Byzantine Empire. Westport: Greenwood. ISBN 0-313-32582-0. {{cite book}}: Invalid |ref=harv (help)
Evans, Helen C. (2004). Byzantium, Faith and Power (1261–1557). New York, NY: Metropolitan Museum of Art/Yale University Press. ISBN 1-58839-114-0. {{cite book}}: Invalid |ref=harv (help)
Faas, Patrick (2005) [1994]. Around the Roman Table: Food and Feasting in Ancient Rome. Chicago: University of Chicago Press. ISBN 9780226233475. {{cite book}}: Invalid |ref=harv (help)
Fatouros, Georgios (1992). Theodori Studitae Epistulae: Pars 1: Prolegomena et Textum. Berlin: Walter de Gruyter. ISBN 978-3-110-86514-1. {{cite book}}: Invalid |ref=harv (help)
Fine, John V.A. (1983). The early medieval Balkans. The University of Michigan Press. ISBN 0-472-08149-7. {{cite book}}: Invalid |ref=harv (help)
Foss, Clive (1975). "The Persians in Asia Minor and the end of antiquity". The English Historical Review. 90 (357): 721–747. doi:10.1093/ehr/XC.CCCLVII.721. JSTOR 567292. {{cite journal}}: Invalid |ref=harv (help)
Fossier, Robert; Sondheimer, Janet (1997). The Cambridge Illustrated History of the Middle Ages. Cambridge: Cambridge University Press. ISBN 0-521-26644-0. {{cite book}}: Invalid |ref=harv (help)
Fouracre, Paul; Gerberding, Richard A. (1996). Late Merovingian France: History and Hagiography, 640–720. Manchester: Manchester University Press. ISBN 0-7190-4791-9. {{cite book}}: Invalid |ref=harv (help)
Freeman, Charles (1999). The Greek Achievement – The Foundation of the Western World. New York: Penguin. ISBN 0-670-88515-0. {{cite book}}: Invalid |ref=harv (help)
Friell, Gerard; Williams, Stephen (2005). Theodosius: The Empire at Bay. Routledge. ISBN 978-1-135-78262-7. {{cite book}}: Invalid |ref=harv (help)
Gabriel, Richard A. (2002). The Great Armies of Antiquity. Westport: Greenwood. ISBN 0-275-97809-5. {{cite book}}: Invalid |ref=harv (help)
Garland, Lynda (1999). Byzantine Empresses: Women and Power in Byzantium, CE 527–1204. New York and London: Routledge. ISBN 0-415-14688-7. {{cite book}}: Invalid |ref=harv (help)
Gibbon, Edward (1906). J. B. Bury (with an Introduction by W. E. H. Lecky) (ed.). The Decline and Fall of the Roman Empire (Volumes II, III, and IX). New York: Fred de Fau. {{cite book}}: Invalid |ref=harv (help)
Grabar, André (1984). L'iconoclasme Byzantin: le dossier archéologique. Flammarion. ISBN 2-08-081634-9. {{cite book}}: Invalid |ref=harv (help)
Grant, Robert M. (1975). "Religion and Politics at the Council at Nicaea". The Journal of Religion. 55 (1): 1–12. doi:10.1086/486406. JSTOR 1202069. {{cite journal}}: Invalid |ref=harv (help)
Greatrex, Geoffrey B. (2005). "Byzantium and the East in the Sixth Century". In Maas, Michael (ed.). The Cambridge Companion to the Age of Justinian. Cambridge: Cambridge University Press. pp. 477–509. ISBN 0-521-81746-3. {{cite book}}: Invalid |ref=harv (help)
Greatrex, Geoffrey; Lieu, Samuel N. C. (2002). The Roman Eastern Frontier and the Persian Wars (Part II, 363–630 AD). New York and London: Routledge. ISBN 0-415-14687-9. {{cite book}}: Invalid |ref=harv (help)
Gregory, Timothy E. (2010). A History of Byzantium. Malden: Wiley-Blackwell. ISBN 1-4051-8471-X. {{cite book}}: Invalid |ref=harv (help)
Grierson, Philip (1999). Byzantine Coinage (PDF). Washington, DC: Dumbarton Oaks. ISBN 0-88402-274-9. Archived from the original (PDF) on 27 September 2007. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
Gross, Feliks (1999). Citizenship and Ethnicity: The Growth and Development of a Democratic Multiethnic Institution. Westport: Greenwood. ISBN 0-313-30932-9. {{cite book}}: Invalid |ref=harv (help)
Gutas, Dimitri (1998). Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement. New York and London: Routledge. ISBN 0-415-06132-6. {{cite book}}: Invalid |ref=harv (help)
Hacikyan, Agop Jack; Basmajian, Gabriel; Franchuk, Edward S.; Ouzounian, Nourhan (2002). The Heritage of Armenian Literature: From the Sixth to the Eighteenth Century. Detroit: Wayne State University Press. ISBN 0-8143-3023-1. {{cite book}}: Invalid |ref=harv (help)
Haldon, John (1990). Byzantium in the Seventh Century: The Transformation of a Culture. Cambridge: Cambridge University Press. ISBN 978-0-521-31917-1. {{cite book}}: Invalid |ref=harv (help)
Haldon, John (2004). "The Fate of the Late Roman Senatorial Elite: Extinction or Transformation?". In John Haldon and Lawrence I. Conrad (ed.). The Byzantine and Early Islamic Near East VI: Elites Old and New in the Byzantine and Early Islamic Near East. Darwin. ISBN 0-87850-144-4. {{cite book}}: Invalid |ref=harv (help)
Halsall, Paul (1998). "East Asian History Sourcebook: Chinese Accounts of Rome, Byzantium and the Middle East, c. 91 B.C.E. – 1643 C.E." New York: Fordham University. Retrieved 21 April 2012. {{cite web}}: Invalid |ref=harv (help)
Harris, Jonathan (2014). Byzantium and the Crusades (2nd ed.). Bloomsbury. ISBN 978-1-78093-767-0. {{cite book}}: Invalid |ref=harv (help)
Harvey, Alan (2003). Economic Expansion in the Byzantine Empire, 900–1200. Cambridge: Cambridge University Press. ISBN 0-521-52190-4. {{cite book}}: Invalid |ref=harv (help)
Haywood, John (2001) [1997]. Cassell's Atlas of World History. London: Cassell. ISBN 0-304-35757-X. {{cite book}}: Invalid |ref=harv (help)
Heather, Peter (2005). The Fall of the Roman Empire. London: Macmillan. ISBN 978-0-330-49136-5. {{cite book}}: Invalid |ref=harv (help)
Hindley, Geoffrey (2004). A Brief History of the Crusades. London: Robinson. ISBN 978-1-84119-766-1. {{cite book}}: Invalid |ref=harv (help)
Hooper, Nicholas; Bennett, Matthew (1996). The Cambridge Illustrated Atlas of Warfare: The Middle Ages. Cambridge: Cambridge University Press. ISBN 0-521-44049-1. {{cite book}}: Invalid |ref=harv (help)
Institute for Neohellenic Research (2005). The Historical Review. Vol. II. Athens: Institute for Neohellenic Research. {{cite book}}: Invalid |ref=harv (help)
James, Liz (2010). A Companion to Byzantium. Chichester: John Wiley. ISBN 1-4051-2654-X. {{cite book}}: Invalid |ref=harv (help)
Jayyusi, Salma Khadra; Marín, Manuela (1994) [1992]. The Legacy of Muslim Spain (2nd ed.). Leiden, New York and Köln: E.J. Brill. ISBN 978-90-04-09599-1. {{cite book}}: Invalid |ref=harv (help)
Jenkins, Romilly James Heald (1987). Byzantium: The Imperial Centuries, CE 610–1071. Toronto: University of Toronto Press. ISBN 0-8020-6667-4. {{cite book}}: Invalid |ref=harv (help)
Jones, Arnold Hugh Martin (1986). The Later Roman Empire, 284–602: A Social Economic and Administrative Survey. Baltimore: Johns Hopkins University Press. ISBN 0-8018-3353-1. {{cite book}}: Invalid |ref=harv (help)
Kaegi, Walter Emil (2003). Heraclius, Emperor of Byzantium. Cambridge: Cambridge University Press. ISBN 0-521-81459-6. {{cite book}}: Invalid |ref=harv (help)
Kaldellis, Anthony (2007). Hellenism in Byzantium: The Transformations of Greek Identity and the Reception of the Classical Tradition. Cambridge: Cambridge University Press. ISBN 0-521-87688-5. {{cite book}}: Invalid |ref=harv (help)
Kaldellis, Anthony (2015). The Byzantine Republic: People and Power in New Rome. Harvard University Press. ISBN 9780674365407. {{cite book}}: Invalid |ref=harv (help)
Karlin-Heyer, P. (1967). "When Military Affairs Were in Leo's Hands: A Note on Byzantine Foreign Policy (886–912)". Tradition. 23: 15–40. JSTOR 27830825. {{cite journal}}: Invalid |ref=harv (help)
Kartomi, Margaret J. (1990). On Concepts and Classifications of Musical Instruments. Chicago: University of Chicago Press. ISBN 0-226-42548-7. {{cite book}}: Invalid |ref=harv (help)
Kazhdan, Alexander Petrovich, ed. (1991). Oxford Dictionary of Byzantium. New York and Oxford: Oxford University Press. ISBN 978-0-19-504652-6. {{cite book}}: Invalid |ref=harv (help)
Kazhdan, Alexander Petrovich; Constable, Giles (1982). People and Power in Byzantium: An Introduction to Modern Byzantine Studies. Washington, DC: Dumbarton Oaks. ISBN 0-88402-103-3. {{cite book}}: Invalid |ref=harv (help)
Kazhdan, Aleksandr Petrovich; Epstein, Ann Wharton (1985). Change in Byzantine Culture in the Eleventh and Twelfth Centuries. Berkeley and Los Angeles: University of California Press. ISBN 0-520-05129-7. {{cite book}}: Invalid |ref=harv (help)
Kean, Roger Michael (2006). Forgotten Power: Byzantium: Bulwark of Christianity. Shropshire: Thalamus. ISBN 1-902886-07-0. {{cite book}}: Invalid |ref=harv (help)
King, David A. (March 1991). "Reviews: The Astronomical Works of Gregory Chioniades, Volume I: The Zij al- Ala'i by Gregory Chioniades, David Pingree; An Eleventh-Century Manual of Arabo-Byzantine Astronomy by Alexander Jones". Isis. 82 (1): 116–118. doi:10.1086/355661. {{cite journal}}: Invalid |ref=harv (help)
Klein, Holgen A. (2004). "Eastern Objects and Western Desires: Relics and Reliquaries between Byzantium and the West". Dumbarton Oaks Papers. 58: 283–314. doi:10.2307/3591389. JSTOR 3591389. {{cite journal}}: Invalid |ref=harv (help)
Köprülü, Mehmet Fuad (1992). The Origins of the Ottoman Empire. Translated and edited by Gary Leiser. Albany: State University of New York Press. ISBN 0-7914-0819-1. {{cite book}}: Invalid |ref=harv (help)
Kountoura-Galake, Eleonora (1996). Ο βυζαντινός κλήρος και η κοινωνία των "Σκοτεινών Αἰώνων ["The Byzantine Clergy and the Society of the 'Dark Ages'"] (in Greek). Athens: Ethniko Idryma Erevnon. ISBN 978-960-7094-46-9. {{cite book}}: Invalid |ref=harv (help)
Kuhoff, Wolfgang (2002). "Die diokletianische Tetrarchie als Epoche einer historischen Wende in antiker und moderner Sicht". International Journal of the Classical Tradition. 9 (2): 177–194. doi:10.1007/BF02898434. JSTOR 30224306. {{cite journal}}: Invalid |ref=harv (help)
Laiou, Angeliki E. (2002). "Exchange and Trade, Seventh-Twelfth Centuries". In Angeliki E. Laiou (ed.). The Economic History of Byzantium (Volume 2). Washington, DC: Dumbarton Oaks. pp. 697–708. Archived from the original on 30 September 2013. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
Laiou, Angeliki E.; Morisson, Cécile (2007). The Byzantine Economy. Cambridge: Cambridge University Press. ISBN 0-521-84978-0. {{cite book}}: Invalid |ref=harv (help)
Laiou, Angeliki E. (2002). "Writing the Economic History of Byzantium". In Angeliki E. Laiou (ed.). The Economic History of Byzantium (Volume 1) (PDF). Washington, DC: Dumbarton Oaks. pp. 3–8. Archived from the original (PDF) on 30 September 2013. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
Lapidge, Michael; Blair, John; Keynes, Simon (1998). The Blackwell Encyclopaedia of Anglo-Saxon England. Malden: Blackwell. ISBN 0-631-22492-0. {{cite book}}: Invalid |ref=harv (help)
Lenski, Noel (1999). "Assimilation and Revolt in the Territory of Isauria, From the 1st Century BC to the 6th Century AD". Journal of the Economic and Social History of the Orient. 42 (4): 413–465. doi:10.1163/1568520991201687. ISSN 0022-4995. JSTOR 3632602. {{cite journal}}: Invalid |ref=harv (help)
Louth, Andrew (2005). "The Byzantine Empire in the Seventh Century". In Paul Fouracre and Rosamond McKitterick (ed.). The New Cambridge Medieval History (Volume I). Cambridge: Cambridge University Press. ISBN 0-521-36291-1. {{cite book}}: Invalid |ref=harv (help)
Lowry, Heath W. (2003). The Nature of the Early Ottoman State. Albany, NY: State University of New York Press. ISBN 9780791487266. {{cite book}}: Invalid |ref=harv (help)
Madden, Thomas F. (2005). Crusades: The Illustrated History. Ann Arbor: University of Michigan Press. ISBN 0-472-03127-9. {{cite book}}: Invalid |ref=harv (help)
Magdalino, Paul (2002). "Medieval Constantinople: Built Environment and Urban Development". In Angeliki E. Laiou (ed.). The Economic History of Byzantium (Volume 2). Washington, DC: Dumbarton Oaks. pp. 529–537. Archived from the original on 30 September 2013. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
Magdalino, Paul (2002). The Empire of Manuel I Komnenos, 1143–1180. Cambridge: Cambridge University Press. ISBN 0-521-52653-1. {{cite book}}: Invalid |ref=harv (help)
Mango, Cyril A. (2007). Η Αυτοκρατορία της Νέας Ρώμης [Byzantium: The Empire of the New Rome] (in Greek). Translated by Dimitris Tsoungarakis. Athens: Educational Institution of the National Bank of Greece. {{cite book}}: Invalid |ref=harv (help)
Mango, Cyril A. (2002). The Oxford History of Byzantium. Oxford: Oxford University Press. ISBN 0-19-814098-3. {{cite book}}: Invalid |ref=harv (help)
Matschke, Klaus-Peter (2002). "Commerce, Trade, Markets, and Money: Thirteenth-Fifteenth Centuries". In Angeliki E. Laiou (ed.). The Economic History of Byzantium (Volume 2). Washington, DC: Dumbarton Oaks. pp. 771–806. Archived from the original on 30 September 2013. {{cite book}}: Invalid |ref=harv (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
McDonnell, Myles Anthony (2006). Roman Manliness: Virtus and the Roman Republic. Cambridge: Cambridge University Press. ISBN 978-0-521-82788-1. {{cite book}}: Invalid |ref=harv (help)
Meier, William N. (2003). "Die Inszenierung einer Katastrophe: Justinian und der Nika-Aufstand". Zeitschrift für Papyrologie und Epigraphik (142): 273–300. JSTOR 20191600. {{cite journal}}: Invalid |ref=harv (help)
Merryman, John Henry; Perez-Perdomo, Rogelio (2007). The Civil Law Tradition: An Introduction to the Legal Systems of Europe and Latin America. Stanford University Press. ISBN 978-0-8047-5569-6. {{cite book}}: Invalid |ref=harv (help)
Meyendorff, John (1982). The Byzantine Legacy in the Orthodox Church. Yonkers: St Vladimir's Seminary Press. ISBN 0-913836-90-7. {{cite book}}: Invalid |ref=harv (help)
Millar, Fergus (2006). A Greek Roman Empire: Power and Belief under Theodosius II (408–450). Berkeley and Los Angeles: University of California Press. ISBN 0-520-24703-5. {{cite book}}: Invalid |ref=harv (help)
Miller, William (1907). "Monemvasia". The Journal of Hellenic Studies. 27. {{cite journal}}: Invalid |ref=harv (help)
Moravcsik, Gyula (1970). Byzantium and the Magyars. Amsterdam: Hakkert. {{cite book}}: Invalid |ref=harv (help)
Neumann, Iver B. (2006). "Sublime Diplomacy: Byzantine, Early Modern, Contemporary". Millennium: Journal of International Studies. 34 (3): 865–888. doi:10.1177/03058298060340030201. ISSN 1569-2981. {{cite journal}}: Invalid |ref=harv (help)
Neville, Leonora Alice (2004). Authority in Byzantine Provincial Society, 950–1100. Cambridge: Cambridge University Press. ISBN 0-521-83865-7. {{cite book}}: Invalid |ref=harv (help)
Nicol, Donald M. (1993) [1972]. The Last Centuries of Byzantium, 1261-1453. Cambridge: Cambridge University Press. ISBN 9780521439916. {{cite book}}: Invalid |ref=harv (help)
Nicol, Donald M. (1996). The Reluctant Emperor: A Biography of John Cantacuzene, Byzantine Emperor and Monk, c. 1295–1383. Cambridge: Cambridge University Press. ISBN 9780521522014. {{cite book}}: Invalid |ref=harv (help)
Norwich, John Julius (1998). A Short History of Byzantium. Ringwood, Vic.: Penguin. ISBN 978-0-14-025960-5. {{cite book}}: Invalid |ref=harv (help)
Norwich, John Julius (1982). A History of Venice. New York: Alfred A. Knopf Incorporated. ISBN 0-394-52410-1. {{cite book}}: Invalid |ref=harv (help)
Nystazopoulou-Pelekidou, Maria (1970). "Συμβολή εις την χρονολόγησιν των Αβαρικών και Σλαβικών επιδρομών επί Μαυρικίου (582–602) (μετ' επιμέτρου περί των Περσικών πολέμων) [=Contribution to the chronology of Avar and Slav raids during the reign of Maurice (582–602), with an excursus about the Persian Wars"]". Byzantina Symmeikta (in Greek). 2: 145–206. ISSN 1105-1639. Retrieved 10 March 2012. {{cite journal}}: Invalid |ref=harv (help)
Obolensky, Dimitri (1974) [1971]. The Byzantine Commonwealth: Eastern Europe, 500–1453. London: Cardinal. ISBN 9780351176449. {{cite book}}: Invalid |ref=harv (help)
Obolensky, Dimitri (1994). Byzantium and the Slavs. Yonkers: St Vladimir's Seminary Press. ISBN 0-88141-008-X. {{cite book}}: Invalid |ref=harv (help)
Oikonomides, Nikos (1999). "L᾽"Unilinguisme" Officiel de Constantinople Byzantine". Byzantina Symmeikta. 13: 9–22. ISSN 1105-1639. Retrieved 11 March 2012. {{cite journal}}: Invalid |ref=harv (help)
Ostrogorsky, George (1969). History of the Byzantine State. New Brunswick: Rutgers University Press. ISBN 0-8135-1198-4. {{cite book}}: Invalid |ref=harv (help)
Ostrogorsky, George (1959). "The Byzantine Empire in the World of the Seventh Century". Dumbarton Oaks Papers. 13: 1–21. doi:10.2307/1291127. JSTOR 1291126. {{cite journal}}: Invalid |ref=harv (help)
Paparrigopoulos, Constantine; Karolidis, Pavlos (1925). Ιστορία του Ελληνικού Έθνους ["History of the Greek Nation"], vol. 4 (in Greek). Eleftheroudakis. {{cite book}}: Invalid |ref=harv (help)
Parry, Kenneth (1996). Depicting the Word: Byzantine Iconophile Thought of the Eighth and Ninth Centuries. Leiden and New York: Brill. ISBN 90-04-10502-6. {{cite book}}: Invalid |ref=harv (help)
Patterson, Gordon M. (1995) [1990]. The Essentials of Medieval History: 500 to 1450 AD, the Middle Ages. Piscataway: Research and Education Association. ISBN 978-0-87891-705-1. {{cite book}}: Invalid |ref=harv (help)
Perrottet, Tony (2004). The Naked Olympics: The True Story of the Ancient Games. Random House. ISBN 978-1-58836-382-4. {{cite book}}: Invalid |ref=harv (help)
Postan, Michael Moïssey; Miller, Edward; Postan, Cynthia (1987). The Cambridge Economic History of Europe (Volume 2). Cambridge: Cambridge University Press. ISBN 0-521-08709-0. {{cite book}}: Invalid |ref=harv (help)
Pounds, Norman John Greville (1979). An Historical Geography of Europe, 1500–1840. Cambridge: Cambridge University Press. ISBN 0-521-22379-2. {{cite book}}: Invalid |ref=harv (help)
Read, Piers Paul (2000) [1999]. The Templars: The Dramatic History of the Knights Templar, The Most Powerful Military Order of the Crusades. New York: St. Martin's Press. ISBN 0-312-26658-8. {{cite book}}: Invalid |ref=harv (help)
Reinert, Stephen W. (2002). "Fragmentation (1204–1453)". In Cyril Mango (ed.). The Oxford History of Byzantium. Oxford: Oxford University Press. pp. 248–283. ISBN 0-19-814098-3. {{cite book}}: Invalid |ref=harv (help)
Rice, David Talbot (1968). Byzantine Art (3rd Edition). Harmondsworth: Penguin Books Limited. {{cite book}}: Invalid |ref=harv (help)
Robins, Robert Henry (1993). The Byzantine Grammarians: Their Place in History. Berlin and New York: Mouton de Gruyter. ISBN 3-11-013574-4. {{cite book}}: Invalid |ref=harv (help)
Rosser, John H. (2011). "Introduction". Historical Dictionary of Byzantium. Lanham, MA: Scarecrow. ISBN 0-8108-7567-5. {{cite book}}: Invalid |ref=harv (help)
Runciman, Steven (1990). The Fall of Constantinople, 1453. Cambridge: Cambridge University Press. ISBN 0-521-39832-0. {{cite book}}: Invalid |ref=harv (help)
Runciman, Steven (2004). The Byzantine Theocracy. Cambridge: Cambridge University Press. ISBN 9780521545914. {{cite book}}: Invalid |ref=harv (help)
Salaman, Rena (1986). "The Case of the Missing Fish, or Dolmathon Prolegomena". In Jaine, Tom (ed.). Oxford Symposium on Food & Cookery 1984 & 1985: Cookery: Science, Lore & Books: Proceedings (Introduction by Alan Davidson). London: Prospect Books Limited. pp. 184–187. ISBN 9780907325161. {{cite book}}: Invalid |ref=harv (help)
Sarantis, Alexander (2009). "War and Diplomacy in Pannonia and the Northwest Balkans during the Reign of Justinian: The Gepid Threat and Imperial Responses". Dumbarton Oaks Papers. 63: 15–40. JSTOR 41219761. {{cite journal}}: Invalid |ref=harv (help)
Sedlar, Jean W. (1994). East Central Europe in the Middle Ages, 1000–1500. Vol. III. Seattle: University of Washington Press. ISBN 0-295-97290-4. {{cite book}}: Invalid |ref=harv (help)
Seton-Watson, Hugh (1967). The Russian Empire, 1801–1917. Oxford: Oxford University Press. ISBN 0-19-822152-5. {{cite book}}: Invalid |ref=harv (help)
Šišić, Ferdo (1990). Povijest Hrvata u vrijeme narodnih vladara: sa 280 slika i 3 karte u bojama. Zagreb: Nakladni zavod Matice hrvatske. ISBN 86-401-0080-2. {{cite book}}: Invalid |ref=harv (help)
Sotinel, Claire (2005). "Emperors and Popes in the Sixth Century: The Western View". In Maas, Michael (ed.). The Cambridge Companion to the Age of Justinian. Cambridge: Cambridge University Press. pp. 267–290. ISBN 0-521-81746-3. {{cite book}}: Invalid |ref=harv (help)
Speck, Paul (1984). "Ikonoklasmus und die Anfänge der Makedonischen Renaissance". Poikila Byzantina. 4: 175–210. {{cite journal}}: Invalid |ref=harv (help)
Stephenson, Paul (2000). Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900–1204. Cambridge: Cambridge University Press. ISBN 0-521-77017-3. {{cite book}}: Invalid |ref=harv (help)
Tarasov, Oleg; Milner-Gulland, R. R. (2004). Icon and Devotion: Sacred Spaces in Imperial Russia. London: Reaktion. ISBN 1-86189-118-0. {{cite book}}: Invalid |ref=harv (help)
Tatakes, Vasileios N.; Moutafakis, Nicholas J. (2003). Byzantine Philosophy. Indianapolis: Hackett. ISBN 0-87220-563-0. {{cite book}}: Invalid |ref=harv (help)
Teall, John L. (1967). "The Age of Constantine Change and Continuity in Administration and Economy". Dumbarton Oaks Papers. 21: 11–36. JSTOR 1291256. {{cite journal}}: Invalid |ref=harv (help)
Timberlake, Alan (2004). A Reference Grammar of Russian. Cambridge: Cambridge University Press. ISBN 978-0-521-77292-1. {{cite book}}: Invalid |ref=harv (help)
Treadgold, Warren (1995). Byzantium and Its Army, 284–1081. Stanford: Stanford University Press. ISBN 0-8047-2420-2. {{cite book}}: Invalid |ref=harv (help)
Treadgold, Warren (1997). A History of the Byzantine State and Society. Stanford: Stanford University Press. ISBN 0-8047-2630-2. {{cite book}}: Invalid |ref=harv (help)
Troianos, Spyros; Velissaropoulou-Karakosta, Julia (1997). Ιστορία δικαίου από την αρχαία στην νεώτερη Ελλάδα ["History of law from ancient to modern Greece"]. Athens: Sakkoulas. ISBN 960-232-594-1. {{cite book}}: Invalid |ref=harv (help)
Vasiliev, Alexander Alexandrovich (1928–1935). History of the Byzantine Empire. Madison: The University of Wisconsin Press. ISBN 0-299-80925-0. {{cite book}}: Invalid |ref=harv (help)
Versteegh, Cornelis H. M. (1977). Greek Elements in Arabic Linguistic Thinking. Leiden: Brill. ISBN 90-04-04855-3. {{cite book}}: Invalid |ref=harv (help)
Vryonis, Speros (1971). The Decline of Medieval Hellenism in Asia Minor and the Process of Islamization from the Eleventh through the Fifteenth Century. Berkeley, CA: University of California Press. ISBN 978-0-52-001597-5. {{cite book}}: Invalid |ref=harv (help)
Watson, Bruce (1993). Sieges: A Comparative Study. Westport: Praeger. ISBN 0-275-94034-9. {{cite book}}: Invalid |ref=harv (help)
Weitzmann, Kurt (1982). The Icon. London: Evans Brothers. ISBN 0-237-45645-1. {{cite book}}: Invalid |ref=harv (help)
Wells, Herbert George (1922). A Short History of the World. New York: Macmillan. ISBN 0-06-492674-5. {{cite book}}: Invalid |ref=harv (help)
Whittow, Mark (1996). The Making of Byzantium, 600–1025. Berkeley and Los Angeles, CA: University of California Press. ISBN 0-520-20496-4. {{cite book}}: Invalid |ref=harv (help)
Wickham, Chris (2009). The Inheritance of Rome: A History of Europe from 400 to 1000. New York: Viking. ISBN 0-670-02098-2. {{cite book}}: Invalid |ref=harv (help)
Wolff, Robert Lee (1948). "Romania: The Latin Empire of Constantinople". Speculum. 23 (1): 1–34. doi:10.2307/2853672. JSTOR 2853672. {{cite journal}}: Invalid |ref=harv (help)
Wroth, Warwick (1908). Catalogue of the Imperial Byzantine Coins in the British Museum. British Museum Dept. of Coins and Medals. ISBN 1-4021-8954-0. {{cite book}}: Invalid |ref=harv (help)

External links

Library resources about
Byzantine Empire

Online books
Resources in your library
Resources in other libraries

Byzantine Empire on In Our Time at the BBC
De Imperatoribus Romanis. Scholarly biographies of many Byzantine emperors.
12 Byzantine Rulers by Lars Brownworth of The Stony Brook School; audio lectures. NYTimes review.
18 centuries of Roman Empire by Howard Wiseman (Maps of the Roman/Byzantine Empire throughout its lifetime).
Byzantine & Christian Museum

Byzantine studies, resources and bibliography

Fox, Clinton R. What, If Anything, Is a Byzantine? (Online Encyclopedia of Roman Emperors)
Byzantine studies homepage at Dumbarton Oaks. Includes links to numerous electronic texts.
Byzantium: Byzantine studies on the Internet. Links to various online resources.
Translations from Byzantine Sources: The Imperial Centuries, c. 700–1204. Online sourcebook.
De Re Militari. Resources for medieval history, including numerous translated sources on the Byzantine wars.
Medieval Sourcebook: Byzantium. Numerous primary sources on Byzantine history.
Bibliography on Byzantine Material Culture and Daily Life. Hosted by the University of Vienna; in English.
Constantinople Home Page. Links to texts, images and videos on Byzantium.
Byzantium in Crimea: Political History, Art and Culture.
Institute for Byzantine Studies of the Austrian Academy of Sciences (with further resources and a repository with papers on various aspects of the Byzantine Empire)

[14] "Romania" was a popular name of the empire used mainly unofficially, which meant "land of the Romans".^[12] After 1081, it occasionally appears in official Byzantine documents as well. In 1204, the leaders of the Fourth Crusade gave the name Romania to the newly founded Latin Empire.^[13] The term does not refer to modern Romania.

[1] Kaldellis 2015, p. 6

[2] "Byzantine Empire". Encyclopædia Britannica.

[FOOTNOTEKazhdanEpstein19851-3] Kazhdan & Epstein 1985, p. 1.

[FOOTNOTEMillar20062,_15James20105Freeman1999431,_435–437,_459–462BaynesMoss1948xxOstrogorsky196927Kaldellis20072–3KazhdanConstable198212Norwich1998383-4] Millar 2006, pp. 2, 15; James 2010, p. 5; Freeman 1999, pp. 431, 435–437, 459–462; Baynes & Moss 1948, p. xx; Ostrogorsky 1969, p. 27; Kaldellis 2007, pp. 2–3; Kazhdan & Constable 1982, p. 12; Norwich 1998, p. 383.

[FOOTNOTEOstrogorsky1969105–107,_109Norwich199897Haywood20012.17,_3.06,_3.15-5] Ostrogorsky 1969, pp. 105–107, 109; Norwich 1998, p. 97; Haywood 2001, pp. 2.17, 3.06, 3.15.

[6] Haldon, John; Haldon, Shelby Cullom Davis 3.0. Professor of European History Professor of History Hellenic Studies John (2002). Warfare, State And Society In The Byzantine World 560–1204. p. 47. ISBN 9781135364373.{{cite book}}: CS1 maint: numeric names: authors list (link)

[7] Pounds, Norman John Greville. An Historical Geography of Europe, 1500–1840, p. 124. CUP Archive, 1979. ISBN 0-521-22379-2.

[8] "The End of the Byzantine Empire, 1081–1453". Archived from the original on 24 September 2015. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)

[9] William Miller, Trebizond: The last Greek Empire of the Byzantine Era: 1204–1461, 1926 (Chicago: Argonaut, 1969), pp. 100–106

[10] Fox, What, If Anything, Is a Byzantine?; Rosser 2011, p. 1

[11] Rosser 2011, p. 2.

[12] Fossier & Sondheimer 1997, p. 104.

[13] Wolff 1948, pp. 5–7, 33–34.

[15] Fatouros 1992, p. 862: "Γραικία: Graecia, imperium byzantinum" (Theodori Studitae Epistulae, 145,19 and 458,28).

[16] Cinnamus 1976, p. 240.

[17] Institute for Neohellenic Research 2005, p. 8.

[18] Ahrweiler & Laiou 1998, p. 3; Mango 2002, p. 13.

[19] Gabriel 2002, p. 277.

[20] Ahrweiler & Laiou 1998, p. vii; Davies 1996, p. 245; Gross 1999, p. 45; Lapidge, Blair & Keynes 1998, p. 79; Millar 2006, pp. 2, 15; Moravcsik 1970, pp. 11–12; Ostrogorsky 1969, pp. 28, 146; Browning 1983, p. 113.

[21] Klein 2004, p. 290 (Note #39); Annales Fuldenses, 389: "Mense lanuario c. epiphaniam Basilii, Graecorum imperatoris, legati cum muneribus et epistolis ad Hludowicum regem Radasbonam venerunt ...".

[22] Fouracre & Gerberding 1996, p. 345: "The Frankish court no longer regarded the Byzantine Empire as holding valid claims of universality; instead it was now termed the 'Empire of the Greeks'."

[23] Garland 1999, p. 87.

[24] Tarasov & Milner-Gulland 2004, p. 121; El-Cheikh 2004, p. 22

[25] Eusebius, IV, lxii.

[Ostrogorsky_1959_21-26] Ostrogorsky 1959, p. 21; Wells 1922, Chapter 33.

[Kuhoff-27] Bury 1923, p. 1; Kuhoff 2002, pp. 177–178.

[esler-1081-28] Bury 1923, p. 1; Esler 2004, p. 1081; Gibbon 1906, Volume III, Part IV, Chapter 18, p. 168; Teall 1967, pp. 13, 19–23, 25, 28–30, 35–36

[B163-29] Bury 1923, p. 63; Drake 1995, p. 5; Grant 1975, pp. 4, 12.

[30] Bowersock 1997, p. 79

[31] Greatrex & Lieu 2002, p. 1

[32] Friell & Williams 2005, p. 105

[33] Perrottet 2004, p. 190

[34] Cameron 2009, pp. 54, 111, 153.

[35] Alemany 2000, p. 207; Bayless 1976, pp. 176–177; Treadgold 1997, pp. 184, 193.

[36] Cameron 2009, p. 52.

[Burns_1991_65,_76–77,_86–87-37] Burns 1991, pp. 65, 76–77, 86–87

[38] Lenski 1999, pp. 428–429.

[39] Grierson 1999, p. 17.

[40] Postan, Miller & Postan 1987, p. 140.

[41] Chapman 1971, p. 210

[M290-42] Meier 2003, p. 290.

[43] Wickham 2009, p. 90

[44] Haldon 1990, p. 17

[45] Evans 2005, p. 104

[46] Gregory 2010, p. 150.

[47] Merryman & Perez-Perdomo 2007, p. 7

[48] Gregory 2010, p. 137; Meier 2003, pp. 297–300.

[49] Gregory 2010, p. 145.

[Ev-50] Evans 2005, p. xxv.

[B180-216-51] Bury 1923, pp. 180–216; Evans 2005, pp. xxvi, 76.

[Maas278T187-52] Sotinel 2005, p. 278; Treadgold 1997, p. 187.

[B236-258-53] Bury 1923, pp. 236–258; Evans 2005, p. xxvi.

[B259-281-54] Bury 1923, pp. 259–281; Evans 2005, p. 93.

[B86-288-55] Bury 1923, pp. 286–288; Evans 2005, p. 11.

[56] Greatrex 2005, p. 489; Greatrex & Lieu 2002, p. 113

[57] Bury 1920, "Preface", pp. v–vi

[58] Evans 2005, pp. 11, 56–62; Sarantis 2009, passim.

[59] Evans 2005, p. 65

[60] Evans 2005, p. 68

[61] Cameron 2009, pp. 113, 128.

[62] Bray 2004, pp. 19–47; Haldon 1990, pp. 110–111; Treadgold 1997, pp. 196–197.

[Louth_2005_113–115-63] Louth 2005, pp. 113–115; Nystazopoulou-Pelekidou 1970, passim; Treadgold 1997, pp. 231–232.

[64] Fine 1983, p. 33

[65] Foss 1975, p. 722.

[66] Haldon 1990, p. 41; Speck 1984, p. 178.

[67] Haldon 1990, pp. 42–43.

[68] Grabar 1984, p. 37; Cameron 1979, p. 23.

[69] Cameron 1979, pp. 5–6, 20–22.

[Norwich93-70] Norwich 1998, p. 93

[71] Haldon 1990, p. 46; Baynes 1912, passim; Speck 1984, p. 178.

[72] Foss 1975, pp. 746–747.

[73] Haldon 1990, p. 50.

[74] Haldon 1990, pp. 61–62.

[75] Haldon 1990, pp. 102–114; Laiou & Morisson 2007, p. 47.

[76] Laiou & Morisson 2007, pp. 38–42, 47; Wickham 2009, p. 260.

[77] Haldon 1990, pp. 208–215; Kaegi 2003, pp. 236, 283.

[78] Heather 2005, p. 431.

[79] Haldon 1990, pp. 43–45, 66, 114–115

[Haldon_1990_66–67-80] Haldon 1990, pp. 66–67.

[81] Haldon 1990, p. 71.

[82] Haldon 1990, pp. 70–78, 169–171; Haldon 2004, pp. 216–217; Kountoura-Galake 1996, pp. 62–75.

[83] Cameron 2009, pp. 67–68.

[G89-84] Cameron 2009, pp. 167–170; Garland 1999, p. 89.

[P11-85] Parry 1996, pp. 11–15.

[86] Cameron 2009, p. 267.

[Browning-1992-95-87] Browning 1992, p. 95.

[88] Treadgold 1997, pp. 432–433.

[Browning-1992-96-89] Browning 1992, p. 96.

[Karlin-Heyer_1967_24-90] Karlin-Heyer 1967, p. 24.

[B101-91] Browning 1992, p. 101.

[Browning-1992-107-92] Browning 1992, p. 107.

[Browning-1992-108-93] Browning 1992, p. 108.

[Browning-1992-112-94] Browning 1992, pp. 112.

[Browning-1992-113-95] Browning 1992, pp. 113.

[Browning-1992-116-96] Browning 1992, p. 116.

[97] Browning 1992, p. 100.

[98] Browning 1992, pp. 102–103.

[99] Browning 1992, pp. 103–105.

[100] Browning 1992, pp. 106–107.

[101] Browning 1992, pp. 112–113.

[B115-102] Browning 1992, p. 115.

[Browning-1992-114-115-103] Browning 1992, pp. 114–115.

[Cameron_2009_77-104] Cameron 2009, p. 77.

[Browning-1992-97-98-105] Browning 1992, pp. 97–98.

[Browning-1992-98-99-106] Browning 1992, pp. 98–99.

[Browning-1992-98-109-107] Browning 1992, pp. 98–109.

[108] Laiou & Morisson 2007, pp. 130–131; Pounds 1979, p. 124.

[109] Duiker & Spielvogel 2010, p. 317.

[110] Timberlake 2004, p. 14.

[111] Patterson 1995, p. 15.

[112] Cameron 2009, p. 83.

[113] Treadgold 1997, pp. 548–549.

[PM-114] Markham, "The Battle of Manzikert".

[115] Vasiliev 1928–1935, "Relations with Italy and Western Europe".

[116] Hooper & Bennett 1996, p. 82; Stephenson 2000, p. 157.

[117] Šišić 1990.

[118] "Byzantine Empire". Encyclopædia Britannica. 2002.; Markham, "The Battle of Manzikert".

[Browning-1992-190-119] Browning 1992, p. 190.

[120] Cameron 2006, pp. 46.

[121] Cameron 2006, pp. 42.

[122] Cameron 2006, pp. 47.

[Browning-1992-190-218-123] Browning 1992, pp. 198–208.

[Browning-1992-218-124] Browning 1992, p. 218.

[M124-125] Magdalino 2002, p. 124 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).

[Br-126] "Byzantine Empire". Encyclopædia Britannica.

[Birkenmeier-127] Birkenmeier 2002.

[Harris-128] Harris 2014; Read 2000, p. 124; Watson 1993, p. 12.

[A261-129] Komnene 1928, Alexiad, 10.261

[A291-130] Komnene 1928, Alexiad, 11.291

[A348-358-131] Komnene 1928, Alexiad, 13.348–13.358; Birkenmeier 2002, p. 46.

[132] Norwich 1998, p. 267.

[133] Ostrogorsky 1969, p. 377.

[B90-134] Birkenmeier 2002, p. 90.

[FOOTNOTECinnamus197674–75-135] Cinnamus 1976, pp. 74–75.

[136] Harris 2014, p. 84.

[B326-137] Brooke 1962, p. 326.

[S-138] Magdalino 2002, p. 74 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).

[S372-139] Sedlar 1994, p. 372.

[M67-140] Magdalino 2002, p. 67 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).

[B129-141] Birkenmeier 2002, p. 128.

[B196-142] Birkenmeier 2002, p. 196.

[B185-186-143] Birkenmeier 2002, pp. 185–186.

[Br1-144] Birkenmeier 2002, p. 1.

[Day-145] Day 1977, pp. 289–290; Harvey 2003.

[Diehl-146] Diehl 1948.

[TM-147] Tatakes & Moutafakis 2003, p. 110.

[Norwich291-148] Norwich 1998, p. 291.

[Norwich292-149] Norwich 1998, p. 292.

[M194-150] Ostrogorsky 1969, p. 397.

[151] Harris 2014, p. 118.

[Norwich293-152] Norwich 1998, p. 293.

[Norwich294-295-153] Norwich 1998, pp. 294–295.

[AP-154] Angold 1997; Paparrigopoulos & Karolidis 1925, p. 216

[VA-155] Vasiliev 1928–1935, "Foreign Policy of the Angeloi".

[Norwich299-156] Norwich 1998, p. 299.

[Br4Cr-157] "The Fourth Crusade and the Latin Empire of Constantinople". Encyclopædia Britannica.

[BrC-158] Britannica Concise, Siege of Zara Archived 6 July 2007 at the Wayback Machine.

[159] Geoffrey of Villehardouin 1963, p. 46.

[Norwich301-160] Norwich 1998, p. 301.

[NC-161] Choniates 1912, The Sack of Constantinople.

[162] Norwich 1982, pp. 127–143.

[163] A. A. Vasiliev, "The Foundation of the Empire of Trebizond (1204–1222)", Speculum, 11 (1936), pp. 18f

[164] Kean 2006; Madden 2005, p. 162.

[165] Köprülü 1992, pp. 33–41.

[166] Madden 2005, p. 179; Reinert 2002, p. 260.

[167] Reinert 2002, p. 257.

[168] Reinert 2002, p. 257.

[169] Reinert 2002, p. 261.

[170] Reinert 2002, p. 268.

[171] Reinert 2002, p. 270.

[172] Runciman 1990, pp. 71–72 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).

[R84-85-173] Runciman 1990, pp. 84–85 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).

[R84-86-174] Runciman 1990, pp. 84–86 harvnb error: multiple targets (2×): CITEREFRunciman1990 (help).

[175] Hindley 2004, p. 300.

[176] Miller 1907, p. 236

[177] Lowry 2003, pp. 115–116.

[178] Clark 2000, p. 213.

[179] Seton-Watson 1967, p. 31.

[180] Mango 2007, pp. 259–260.

[L291-181] Louth 2005, p. 291; Neville 2004, p. 7.

[M60-182] Cameron 2009, pp. 138–142; Mango 2007, p. 60.

[L34-183] Cameron 2009, pp. 157–158; Neville 2004, p. 34.

[L13-184] Neville 2004, p. 13.

[N1-185] Neumann 2006, pp. 869–871.

[186] Chrysos 1992, p. 35.

[Ant-187] Antonucci 1993, pp. 11–13.

[188] Antonucci 1993, pp. 11–13; Seeck 1876, pp. 31–33

[189] Bury & Philotheus 1911, p. 93.

[190] Dennis 1985, p. 125.

[O3-191] Obolensky 1994, p. 3.

[192] Anastos 1962, p. 409.

[193] Alexander Jones, "Book Review, Archimedes Manuscript" American Mathematical Society, May 2005.

[194] "Pendentive – architecture".

[195] Field, J.V; Wright, M.T (22 August 2006). "Gears from the Byzantines: A portable sundial with calendrical gearing". Annals of Science. 42 (2): 87. doi:10.1080/00033798500200131.

[196] "Anonymous, Byzantine sundial-cum-calendar". brunelleschi.imss.fi.it.

[197] "Sundial info" (PDF). academy.edu.gr.

[auto-198] Partington, J. R. (1999). "A History of Greek Fire and Gunpowder". The Johns Hopkins University Press. page 13

[199] Prioreschi, Plinio. 2004. A History of Medicine: Byzantine and Islamic medicine. Horatius Press. Page 42.

[200] Pevny, Olenka Z. (2000). "Perceptions of Byzantium and Its Neighbors: 843-1261". Yale University Press. p. 94-95.

[201] ttp://homepages.wmich.edu/~mcgrew/philfall.htm

[202] Wildberg, Christian (8 March 2018). Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University – via Stanford Encyclopedia of Philosophy.

[203] Lindberg, David. (1992) The Beginnings of Western Science. University of Chicago Press. Page 162.

[204] Wikander, Orjan. 2000. "Handbook of Ancient Water Technology". Brill. Page 383-384.

[205] "Boat mills: water powered, floating factories". LOW-TECH MAGAZINE.

[206] Troianos & Velissaropoulou-Karakosta 1997, p. 340

[207] Lindberg, David. (1992) The Beginnings of Western Science. University of Chicago Press. Page 349.

[208] Prioreschi, Plinio. 2004. A History of Medicine: Byzantine and Islamic medicine. Horatius Press. Page 146.

[209] "The Case of Conjoined Twins in 10th Century Byzantium - Medievalists.net". 4 January 2014.

[210] Montandon, Denys (December 2015). "THE UNSPEAKABLE HISTORY OF THORACOPAGUS TWINS' SEPARATION" (PDF). denysmontandon.com.

[211] "Greek fire – weaponry".

[212] Tucker, Spencer C. 2011. “The Encyclopedia of the Vietnam War: A Political, Social, and Military History”. ABC-CLIO. Page 450.

[213] "Greek Fire Grenades".

[214] "Greek Fire".

[TM189-215] Tatakes & Moutafakis 2003, p. 189.

[216] Robins 1993, p. 8.

[217] Lindberg, David. (1992). The Beginnings of Western Science. University of Chicago Press. Page 162.

[218] ttps://plato.stanford.edu/entries/philoponus/

[219] Jennifer Fretland VanVoorst (2012). The Byzantine Empire. Capstone. p. 14. ISBN 9780756545659.

[220] Runciman 2004, pp. 1–2, 162–163.

[M108-221] Mango 2007, p. 108.

[M14-222] Meyendorff 1982, p. 13.

[M19-223] Meyendorff 1982, p. 19.

[M130-224] Meyendorff 1982, p. 130.

[225] Justinian Code: Book 1, Title 1; Blume 2008, Headnote C. 1.1; Mango 2007, p. 108.

[M109-226] Mango 2007, pp. 108–109.

[227] Blume 2008, Headnote C. 1.1; Mango 2007, pp. 108–109, 115–125.

[M115-228] Mango 2007, pp. 115–125.

[M114-229] Mango 2007, pp. 111–114.

[230] Whittow 1996, p. 200.

[231] Rice 1968; Weitzmann 1982.

[232] Rice 1968, Chapters 15–17; Weitzmann 1982, Chapters 2–7; Evans 2004, pp. 389–555.

[Mango275–276-233] Mango 2007, pp. 275–276.

[CLi-234] "Byzantine Literature". Catholic Encyclopedia.

[Ring-235] Ring, Trudy (1994), International Dictionary of Historic Places: Middle East and Africa, vol. 4, Taylor & Francis, ISBN 1884964036

[236] The Columbia Electronic Encyclopedia, 6th ed. 2007 – "Byzantine music"

[237] "Ecumenical Patriarchate — Byzantine Music". ec-patr.net.

[Kartomi124-238] Kartomi 1990, p. 124.

[239] Encyclopædia Britannica (2009), "lira", Encyclopædia Britannica

[Arkenberg109-240] Arkenberg, Rebecca (October 2002), Renaissance Violins, Metropolitan Museum of Art, retrieved 22 September 2006

[241] Journal of Sport History, Vol. 8, No. 3 (Winter, 1981) p. 44.

[Bush-Kassel-327-242] Douglas Earl Bush, Richard Kassel editors, The Organ: An Encyclopedia Routledge. 2006. ISBN 978-0-415-94174-7. p. 327

[Howard-243] Howard, Albert A. (1893). "The Αὐλός or Tibia". Harvard Studies in Classical Philology. 4. Department of the Classics, Harvard University: 1–60. doi:10.2307/310399. JSTOR 310399.

[google15-244] Flood, William Henry Grattan. "The story of the bagpipe". Рипол Классик. ISBN 978-1-176-34422-8.

[245] "Discourses by Dio Chrysostom (Or. 71.9)". The Seventy-first Discourse: On the Philosopher (Volume V). Loeb Classical Library. p. 173. Retrieved 25 June 2016.

[246] Ash 1995, p. 224: "Having inherited pastirma from the Byzantines, the Turks took it with them when they conquered Hungary and Romania."

[247] Davidson 2014, "Byzantine cookery", pp. 123–124: "This is certainly true of Byzantine cuisine. Dried meat, a forerunner of the pastirma of modern Turkey, became a delicacy."

[248] Dalby et al. 2013, p. 81: "paston or tarichon...Cured meats were either eaten raw or cooked in pasto-mageireia with bulgur and greens, mainly cabbage."

[249] Ash 1995, p. 223; Faas 2005, p. 184; Vryonis 1971, p. 482.

[250] Faas 2005, pp. 184–185; Vryonis 1971, p. 482; Salaman 1986, pp. 184.

[Fordham-251] Halsall, Paul (January 1996). "Medieval Sourcebook: Liutprand of Cremona: Report of his Mission to Constantinople". Internet History Sourcebooks Project. Fordham University. Retrieved 25 June 2016.{{cite web}}: CS1 maint: year (link)

[252] Jayyusi & Marín 1994, p. 729.

[253] Perry, Charles (31 October 2001). "The Soy Sauce That Wasn't". Los Angeles Times. Retrieved 25 June 2016.

[FOOTNOTEKazhdan1991472,_999-254] Kazhdan 1991, pp. 472, 999.

[255] Dawkins, R.M. 1916. Modern Greek in Asia Minor. A study of dialect of Silly, Cappadocia and Pharasa. Cambridge: Cambridge University Press.

[256] Millar 2006, p. 279.

[257] Bryce 1901, p. 59; McDonnell 2006, p. 77; Millar 2006, pp. 97–98; Oikonomides 1999, pp. 12–13.

[258] Oikonomides 1999, pp. 12–13.

[ApWr-259] Apostolides 1992, pp. 25–26; Wroth 1908, Introduction, Section 6

[260] Sedlar 1994, pp. 403–440.

[BJVe-261] Beaton 1996, p. 10; Jones 1986, p. 991; Versteegh 1977, Chapter 1.

[262] Campbell 2000, p. 40; Hacikyan et al. 2002, Part 1

[263] Baynes 1907, p. 289; Gutas 1998, Chapter 7, Section 4; Comrie 1987, p. 129.

[264] Beckwith 1993, p. 171; Halsall 1998; Oikonomides 1999, p. 20.

[265] Kaldellis 2007, Chapter 6; Nicol 1993, Chapter 5.

[Austin-266] Austin 1934, pp. 202–205.

[267] Kazhdan 1991.

[268] Anna Komnene,The Alexiad, Book XIV, Chapter IV, translator Elizabeth Dawes

[269] Laiou 2002, p. 643 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help).

[270] Laiou & Morisson 2007, pp. 1, 23–38.

[271] Laiou & Morisson 2007, pp. 3, 45, 49–50, 231; Magdalino 2002, p. 532 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).

[M532-272] Laiou & Morisson 2007, pp. 90–91, 127, 166–169, 203–204; Magdalino 2002, p. 535 harvnb error: multiple targets (2×): CITEREFMagdalino2002 (help).

[M806-273] Matschke 2002, pp. 805–806.

[L723-274] Laiou 2002, p. 723 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help); Laiou & Morisson 2007, p. 13.

[L3-4-275] Laiou 2002, pp. 3–4 harvnb error: multiple targets (2×): CITEREFLaiou2002 (help); Laiou & Morisson 2007, p. 18.

[A1-276] Cameron 2009, pp. 277–281.

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@@ Line 277: / Line 277: @@
 Even after the Christianisation of the Rus', however, relations were not always friendly. The most serious conflict between the two powers was the war of 968–971 in Bulgaria, but several Rus' raiding expeditions against the Byzantine cities of the Black Sea coast and Constantinople itself are also recorded. Although most were repulsed, they were often followed by treaties that were generally favourable to the Rus', such as the one concluded at the end of [[Rus'–Byzantine War (1043)|the war of 1043]], during which the Rus' gave an indication of their ambitions to compete with the Byzantines as an independent power.<ref name="Cameron 2009 77"/>
-==== Byzantine campaigns against Georgia ====
+==== Campaigns against Georgia ====
 {{Main|Byzantine–Georgian wars}}
-The integrity of the Byzantine empire itself was under serious threat after a full-scale rebellion, led by [[Bardas Skleros]], broke out in 976. Following a series of successful battles the rebels swept across [[Asia Minor]]. In the urgency of a situation, Georgian prince [[David III of Tao|David Kuropalate]] aided Basil II and after decisive loyalist victory at the [[Battle of Pankalia]], he was rewarded by lifetime rule of key imperial territories in eastern Asia Minor. However, David’s rebuff of Basil in&nbsp;[[Bardas Phokas the Younger|Bardas Phocas]]’ revolt of 987 evoked&nbsp;[[Constantinople]]’s distrust of the Caucasian rulers. After the failure of the revolt, David was forced to make Basil II the legatee of his extensive possessions. Basil gathered his inheritance upon David’s death in 1000, forcing the successor Georgian Bagratid ruler&nbsp;[[Bagrat III of Georgia|Bagrat III]]&nbsp;to recognize the new rearrangement.&nbsp;Bagrat’s son,&nbsp;[[George I of Georgia|George I]], however, inherited a longstanding claim to David’s succession. Young and ambitious, George launched a campaign to restore the Kuropalates’ succession to Georgia and occupied [[Tao (historical region)|Tao]] in 1015–1016. He also entered in an alliance with the [[Fatimid]] [[Caliph]] of [[Egypt]], [[Al-Hakim bi-Amr Allah|Al-Hakim]] (996–1021), that put Basil in a difficult situation, forcing him to refrain from an acute response to Giorgi’s offensive.
+The integrity of the Byzantine empire itself was under serious threat after a full-scale rebellion, led by [[Bardas Skleros]], broke out in 976. Following a series of successful battles the rebels swept across [[Anatolia|Asia Minor]]. In the urgency of a situation, Georgian prince [[David III of Tao|David Kuropalate]] aided Basil II and after decisive loyalist victory at the [[Battle of Pankaleia]], he was rewarded by lifetime rule of key imperial territories in eastern Asia Minor. However, David’s rebuff of Basil in&nbsp;[[Bardas Phokas the Younger|Bardas Phocas]]’ revolt of 987 evoked&nbsp;[[Constantinople]]’s distrust of the Georgian rulers. After the failure of the revolt, David was forced to make Basil II the legatee of his extensive possessions. This agreement destroyed a previous arrangement by which David had made his adopted son, [[Bagrat III of Georgia]], his heir. Basil gathered his inheritance upon David’s death in 1000 and reorganized provinces of [[Tao (historical region)|Tao]], [[Erzurum|Theodosiopolis]], [[Basiani|Phasiane]] and the [[Lake Van]] region (Apahunik) with the city of [[Malazgirt|Manzikert]] – to the [[Iberia (theme)|theme of Iberia]].
+The following year, the Georgian prince [[Gurgen of Iberia|Gurgen]], natural father of Bagrat III, marched to take David’s inheritance, but was thwarted by the Byzantine general [[Nikephoros Ouranos]], [[dux]] of [[Antioch]], forcing the successor Georgian Bagratids to recognize the new rearrangement.&nbsp;Bagrat’s son,&nbsp;[[George I of Georgia|George I]], however, inherited a longstanding claim to David’s succession. Young and ambitious, George launched a campaign to restore the Kuropalates’ succession to Georgia and occupied [[Tao (historical region)|Tao]] in 1015–1016. He also entered in an alliance with the [[Fatimid]] [[Caliph]] of [[Egypt]], [[Al-Hakim bi-Amr Allah|Al-Hakim]] ({{Circa}}996–1021), that put Basil in a difficult situation, forcing him to refrain from an acute response to George’s offensive.
 [[File:Skylitzes._Basil_II_vs_Georgians_cropped.jpg|link=https://en.wikipedia.org/wiki/File:Skylitzes._Basil_II_vs_Georgians_cropped.jpg|thumb|upright|A miniature depicting the defeat of the Georgian king [[George I of Georgia|George I]] ("Georgios of Abasgia") by the Byzantine emperor Basil. Skylitzes Matritensis, fol. 195v. George is shown as fleeing on horseback on the right and Basil holding a shield and lance on the left.]]
-Beyond that, the Byzantines were at that time involved in a relentless war with the [[First Bulgar Empire|Bulgar Empire]], limiting their actions to the west. But as soon as [[Byzantine conquest of Bulgaria|Bulgaria was conquered]] in 1018, and Al-Hakim was no more alive, Basil led his army against Georgia. preparations for a larger-scale campaign against [[Kingdom of Georgia]] were set in train, beginning with the re-fortification of [[Theodosiopolis (Armenia)|Theodosiopolis]]. In the autumn of 1021, Basil ahead of a large [[Byzantine army|army]], reinforced by the [[Varangian Guard]]s, attacked the Georgians and their [[Bagratid Armenia|Armenian]] allies, recovering [[Basiani|Phasiane]] and pushing on beyond the frontiers of [[Tao (historical region)|Tao]] into inner Georgia. King [[George I of Georgia|George]] burned the city of [[Oltisi]] keep it out of the enemy’s hands and retreated to [[Göle|Kola]]. A bloody [[Battle of Shirimni|battle]] was fought near the village Shirimni at the Lake Palakazio (now [[Çıldır|Çildir]], [[Turkey]]) on September 11 and the emperor won a costly victory, forcing George I to retreat northwards into his kingdom. Plundering the country on his way, Basil withdrew to winter at [[Trabzon|Trebizond]].
+Beyond that, the Byzantines were at that time involved in a relentless war with the [[First Bulgarian Empire|Bulgar Empire]], limiting their actions to the west. But as soon as [[Byzantine conquest of Bulgaria|Bulgaria was conquered]] in 1018, and Al-Hakim was no more alive, Basil led his army against Georgia. preparations for a larger-scale campaign against [[Kingdom of Georgia]] were set in train, beginning with the re-fortification of [[Erzurum|Theodosiopolis]]. In the autumn of 1021, Basil ahead of a large [[Byzantine army|army]], reinforced by the [[Varangian Guard]]s, attacked the Georgians and their [[Bagratid Armenia|Armenian]] allies, recovering [[Basiani|Phasiane]] and pushing on beyond the frontiers of [[Tao (historical region)|Tao]] into inner Georgia. King [[George I of Georgia|George]] burned the city of [[Oltu|Oltisi]] keep it out of the enemy’s hands and retreated to [[Göle|Kola]]. A bloody [[Battle of Shirimni|battle]] was fought near the village Shirimni at the Lake Palakazio (now [[Çıldır|Çildir]], [[Turkey]]) on September 11 and the emperor won a costly victory, forcing George I to retreat northwards into his kingdom. Plundering the country on his way, Basil withdrew to winter at [[Trabzon|Trebizond]].
-Several attempts to negotiate the conflict went in vain and, in the meantime, George received reinforcements from the [[Kakheti]]ans, and allied himself with the Byzantine commanders [[Nikephoros Phokas Barytrachelos|Nicephorus Phocas]] and [[Nicephorus Xiphias]] in their abortive insurrection in the emperor’s rear. In December, George’s ally, the Armenian king Senekerim of [[Vaspurakan]], being harassed by the [[Seljuk Turks]], surrendered his kingdom to the emperor. During the spring of 1022, Basil launched a final offensive winning a crushing victory over the Georgians at [[Battle of Svindax|Svindax]]. Menaced both by land and sea, King George handed over [[Tao (historical region)|Tao]], [[Basiani|Phasiane]], [[Göle|Kola]], [[Ardahan|Artaan]] and [[Javakheti]], and left his infant son [[Bagrat IV of Georgia|Bagrat]] a hostage in Basil's hands.
+Several attempts to negotiate the conflict went in vain and, in the meantime, George received reinforcements from the [[Kakheti]]ans, and allied himself with the Byzantine commanders [[Nikephoros Phokas Barytrachelos|Nicephorus Phocas]] and [[Nikephoros Xiphias|Nicephorus Xiphias]] in their abortive insurrection in the emperor’s rear. In December, George’s ally, the Armenian king Senekerim of [[Vaspurakan]], being harassed by the [[Seljuk Empire|Seljuk Turks]], surrendered his kingdom to the emperor. During the spring of 1022, Basil launched a final offensive winning a crushing victory over the Georgians at [[Battle of Svindax|Svindax]]. Menaced both by land and sea, King George handed over [[Tao (historical region)|Tao]], [[Basiani|Phasiane]], [[Göle|Kola]], [[Ardahan|Artaan]] and [[Javakheti]], and left his infant son [[Bagrat IV of Georgia|Bagrat]] a hostage in Basil's hands.
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