Portal:Theatre/Selected anniversaries/September

• 8 September 1955 – Birth of Osonye Tess Onwueme, an important Nigerian playwright whose works focus on social justice
• 10 September 1892 – Opening of London's Duke of York's Theatre, built for actor-managers Frank Wyatt and Violet Melnotte
• 11 September 1911 – Opening of the Eltinge 42nd Street Theatre (later the Empire Theatre) with a production of Bayard Veiller's Within the Law
• 12 September 1866 – Premiere of The Black Crook, often considered to be the first work of modern musical theatre
• 16 September 1935 – Broadway premier of Ayn Rand's Night of January 16th, a courtroom drama with two alternative endings decided by a jury of audience members at each performance
• 19 September 1936 – Death of Vishnu Narayan Bhatkhande, who brought about a renaissance in classical Indian music
• 24 September 1910 – Birth of Cao Yu, often regarded as the most important Chinese playwright of the 20th century
• 27 September 1917 – Opening of the Broadhurst Theatre with a production of George Bernard Shaw's Misalliance