📅 September 20
22 events · 12 births · 12 deaths
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What happened on September 20? Below are the notable events chosen by Wikipedia’s editors for this date, followed by celebrated births, deaths and the observances recognised around the world.
Events
- 2011 — The United States military ended its "don't ask, don't tell" policy, consequently allowing gay and lesbian people to serve openly.
Don't ask, don't tellSexual orientation and gender identity in the United States military
- 2008 — An explosive-laden truck detonated in front of the Marriott hotel in Islamabad, Pakistan, killing 54 people and injuring 266 others.
Islamabad Marriott Hotel bombingMarriott InternationalIslamabad
- 2000 — The Real Irish Republican Army carried out a rocket-launcher attack on the MI6 headquarters in London, with no casualties and minimal damage recorded.
- 1997 — Hurricane Erika, the strongest and longest-lasting hurricane of the 1997 Atlantic hurricane season, dissipated after causing flooding and power outages throughout Puerto Rico.
- 1988 — British prime minister Margaret Thatcher gave a landmark speech at the Belfry of Bruges, Belgium, against federalism in the European Economic Community.
- 1984 — The Cosby Show, which became one of three U.S. television shows to have the highest ratings five years in a row, premiered with its pilot episode.
- 1977 — A series of celestial phenomena of disputed nature was observed in the western Soviet Union, Finland and Denmark.
- 1973 — Billie Jean King defeated Bobby Riggs in straight sets at the Astrodome in Houston, Texas, in an internationally televised tennis match dubbed the "Battle of the Sexes".
- 1971 — Hurricane Irene (satellite image pictured) moved into the Pacific Ocean from the Atlantic, making it the first actively tracked tropical cyclone to do so.
Hurricane Irene–OliviaList of Atlantic–Pacific crossover hurricanesTropical cyclone
- 1967 — Sweden, Norway, and Denmark submit the Greek case alleging human rights violations by the Greek junta.
- 1967 — L. Ron Hubbard, the founder of Scientology, announced the story of Xenu in a taped lecture sent to all Scientologists.
- 1944 — Second World War: Allied forces captured San Marino from the German Army.
- 1943 — World War II: Australian troops led by Gordon Grimsley King defeated Imperial Japanese forces at the Battle of Kaiapit in New Guinea.
- 1920 — Irish War of Independence: British auxiliary police officers known as Black and Tans went on a rampage in Balbriggan, burning more than fifty homes and businesses and killing two people.
- 1906 — The ocean liner RMS Mauretania, the largest and fastest ship in the world at the time, was launched in Tyneside, England.
- 1870 — The Bersaglieri entered Rome through the Porta Pia, ending the temporal power of the Pope and completing the unification of Italy.
- 1792 — The French Army achieved its first major victory of the War of the First Coalition at the Battle of Valmy.
- 1697 — The first of a series of treaties comprising the Peace of Ryswick was signed between France and the Grand Alliance, ending the Nine Years' War.
Peace of RyswickGrand Alliance (League of Augsburg)Nine Years' War
- 1643 — First English Civil War: The First Battle of Newbury was fought in Berkshire; Parliamentarian forces were allowed to pass Royalist troops to retreat the next morning.
- 1498 — A tsunami caused by the Meiō earthquake washed away the building housing the Great Buddha (pictured) at Kōtoku-in in Kamakura, Japan; the statue has since stood in the open air.
- 1260 — The second of two major uprisings by the Old Prussians, a Baltic tribe, began against the Teutonic Knights.
- 1066 — Harald III of Norway and his English ally Tostig Godwinson defeated the northern earls Edwin and Morcar at the Battle of Fulford near York.
Births
- 2003 — Thomas Matthew Crooks, American attempted assassin of Donald Trump (died 2024)
- 1998 — Trevon Diggs, American football player
- 1997 — Itamar Einhorn, Israeli Olympic cyclist
- 1997 — Nathan Knight, American basketball player
- 1996 — Ioana Loredana Roșca, Romanian tennis player
- 1995 — Laura Dekker, Dutch sailor
- 1995 — Sammi Hanratty, American actress
- 1995 — Rob Holding, English footballer
- 1994 — Ryan Hartman, American ice hockey player
- 1993 — Kyle Anderson, American-Chinese basketball player
- 1993 — Julian Draxler, German footballer
- 1992 — Michał Żyro, Polish footballer
Deaths
- 2026 — Chad Gilbert, American musician, songwriter, and producer (born 1981)
- 2025 — Matt Beard, English football manager (born 1978)
- 2024 — Ibrahim Aqil, Hezbollah militant (born 1962)
- 2024 — Kathryn Crosby, American actress and singer (born 1933)
- 2024 — Daniel J. Evans, American politician, 16th Governor of Washington (born 1925)
- 2024 — Sayuri, Japanese musician (born 1996)
- 2024 — Cleo Sylvestre, English actress (born 1945)
- 2024 — Eduardo Xol, American designer and author (born 1966)
- 2023 — Maddy Cusack, English football player (born 1995)
- 2016 — Curtis Hanson, American film director and screenwriter (born 1945)
- 2016 — Peter Leo Gerety, American bishop (born 1912)
- 2015 — Mario Caiano, Italian director, producer, and screenwriter (born 1933)
Observances & holidays
- Christian feast day: Eustace (Western Christianity)
- Christian feast day: Evilasius
- Christian feast day: Fausta of Cyzicus
- Christian feast day: Glycerius of Milan
- Christian feast day: Jean-Charles Cornay (one of Vietnamese Martyrs)
- Christian feast day: John Coleridge Patteson (commemoration, Anglicanism)
- Christian feast day: José Maria de Yermo y Parres
- Christian feast day: Korean Martyrs, including Andrew Kim Taegon and Laurent-Marie-Joseph Imbert
- Christian feast day: Theodore, Philippa and companions
- Christian feast day: Blessed Thomas Johnson
- Christian feast day: Vincent Madelgarius (Maelceadar)
- Christian feast day: September 20 (Eastern Orthodox liturgics)
- Constitution Day (Nepal)
- Independence Day of South Ossetia (not fully recognized)
- National Youth Day (Thailand)
- Oil Workers' Day (Azerbaijan)
- Universal Children's Day (Germany)
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