Wikipedia:Selected anniversaries/May 1

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This is a list of selected May 1 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.

Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.

To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.

April 30 May 2
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Images

Use only ONE image at a time

Ineligible

Blurb Reason
May Day refimprove
Law Day in the United States refimprove
1169Norman mercenaries landed at Bannow Bay in Leinster, beginning the Norman invasion of Ireland. neutrality issues
1753Carl Linnaeus published his Species Plantarum, which, with his earlier work Systema Naturae, is considered the beginning of modern botanical nomenclature. Use on different dates. 1 May was chosen arbitrarily (per the article)
1840 – The United Kingdom issued the Penny Black, the world's first official adhesive postage stamp used in a public postal system. refimprove
1851 – The Great Exhibition, the first world's fair, opened in London's Hyde Park. refimprove section
1865 – Brazil, Uruguay and Argentina signed a treaty creating an alliance against Paraguay in the War of the Triple Alliance. refimprove section
1893 – The World's Columbian Exposition, a world's fair to celebrate the 400th anniversary of Christopher Columbus' discovery of the New World, opened in Chicago. unreferenced section, refimprove section
1897 – The Ramakrishna Mission was founded by Swami Vivekananda to serve as the humanitarian counterpart to the Hindu monastic order Ramakrishna Math. refimprove section
1898 – The American Asiatic Squadron under Commodore George Dewey defeated the Spanish Pacific Squadron under Admiral Patricio Montojo at the Battle of Manila Bay, the first engagement of the Spanish–American War. refimprove
1925 – The All-China Federation of Trade Unions, the world's largest trade union, was founded in Guangzhou, China. unreferenced section
1956 – A doctor in Japan reported an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease. unreferenced section
1960Bombay State in India was partitioned into Gujarat and Maharashtra along linguistic lines. Gujarat: section needs to be rewritten
1985 – Labor groups in the Philippines established the Bagong Alyansang Makabayan, a political coalition and communist front, in order to challenge the dictatorship of Ferdinand Marcos. refimprove sections, outdated
2001 – Rioters led by Miriam Defensor Santiago, Gregorio Honasan, Panfilo Lacson and Tito Sotto launched a siege against the Philippine presidential palace. refimprove
2003Invasion of Iraq: Aboard the USS Abraham Lincoln in front of a "Mission Accomplished" banner, U.S. president George W. Bush declared that "major combat operations in Iraq have ended". refimprove section
2009Carol Ann Duffy was appointed Poet Laureate of the United Kingdom, the first woman, the first Scot, and the first openly bisexual person to hold the position, as well as the first laureate to be chosen in the 21st century. refimprove section
International Workers' Day; Tagged for referencing
* 1994 – Brazilian racing driver Ayrton Senna, a three-time Formula One World Champion, was killed in a crash during the 1994 San Marino Grand Prix. Missing at least 9 citations

Eligible

Notes

May 1: Beltane and Samhain in the Northern and Southern Hemispheres, respectively; Maharashtra Day in Maharashtra, India (1960); Loyalty Day in the United States

Empire State Building
Empire State Building
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