23 September Events
Published : 23 Sep 2018, 14:04
September 23 is the 266th day of the year (267th in leap years) in the Gregorian calendar.
1122 – Pope Callixtus II and Holy Roman Emperor Henry V agree to the Concordat of Worms to put an end to the Investiture Controversy.
1338 – The Battle of Arnemuiden was the first naval battle of the Hundred Years' War and the first naval battle using gunpowder artillery.
1409 – The Battle of Kherlen is the second significant victory over Ming dynasty China by the Mongols since 1368.
1459 – The Battle of Blore Heath, the first major battle of the English Wars of the Roses, takes place.
1568 – Spanish naval forces rout an English fleet, under the command of John Hawkins, at the Battle of San Juan de Ulúa near Veracruz.
1641 – The Merchant Royal, carrying a treasure of over 100,000 pounds of gold (worth over £1 billion today), is lost at sea off Land's End.
1642 – First commencement exercises occur at Harvard College.
1779 – American Revolution: John Paul Jones on board the USS Bonhomme Richard wins the Battle of Flamborough Head.
1780 – American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
1803 – Second Anglo-Maratha War: Battle of Assaye between the British East India Company and the Maratha Empire in India.
1806 – Lewis and Clark return to St. Louis after exploring the Pacific Northwest of the United States.
1821 – Tripolitsa, Greece, is captured by Greek rebels during the Greek War of Independence.
1845 – The Knickerbockers Baseball Club, the first baseball team to play under the modern rules, is founded in New York.
1846 – Astronomers Urbain Jean Joseph Le Verrier, John Couch Adams and Johann Gottfried Galle collaborate on the discovery of Neptune.
1868 – Grito de Lares ("Lares Revolt") occurs in Puerto Rico against Spanish rule.
1889 – Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
1899 – The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
1905 – Norway and Sweden sign the "Karlstad treaty", peacefully dissolving the Union between the two countries.
1909 – The novel Le Fantôme de l'Opéra (The Phantom of the Opera), by Gaston Leroux, is published as a serialization in Le Gaulois.
1911 – Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
1913 – Roland Garros of France becomes the first to fly in an airplane across the Mediterranean (from St. Raphael in France to Bizerte, Tunisia).
1932 – The unification of Saudi Arabia is completed.
1938 – The Czechoslovak army is mobilized in response to the Munich Agreement.
1942 – World War II: The Matanikau action on Guadalcanal begins: U.S. Marines attack Japanese units along the Matanikau River.
1943 – World War II: The Nazi puppet state known as the Italian Social Republic is founded.
1950 – Korean War: The Battle of Hill 282 is the first US friendly-fire incident on British military personnel since World War II.
1962 – The Lincoln Center for the Performing Arts opens in New York City.
1973 – Argentine general election: Juan Perón returns to power in Argentina.
1980 – Bob Marley plays what would be the last concert of his life in Pittsburgh, Pennsylvania.
1983 – Saint Kitts and Nevis joins the United Nations.
1983 – Gulf Air Flight 771 is destroyed by a bomb, killing all 117 people on board.
1986 – Houston Astros' Jim Deshaies sets a record, striking out the first eight batters he faces against the Los Angeles Dodgers.
2002 – The first public version of the web browser Mozilla Firefox ("Phoenix 0.1") is released.
2004 – Over 3,000 people die in Haiti after Hurricane Jeanne produces massive flooding and mudslides.
2008 – Matti Saari kills ten people before committing suicide.
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