What happend on 23.09 in history
2005FBI killing of Filiberto Ojeda on Plan Bonito Hormigueros, Puerto Rico.
2004At least 1,070 in Haiti reported killed by floods due to Hurricane Jeanne.
2002Mozilla Firefox (Phoenix) web browser is born: version 0.1.
1999NASA announces that it lost contact with the Mars Climate Orbiter.
1993Sonic the Hedgehog CD is released for the Sega Mega-CD in Japan.
1983Gerrie Coetzee of South Africa becomes the first African boxing world heavyweight champion.
1983Saint Kitts and Nevis joins the United Nations.
1981Jack Henry Abbott, best-selling author, is arrested for murder.
1980Bob Marley's last concert
1973Juan PerÃ³n returns to power in Argentina.
1969The Chicago 8 trial opens in Chicago, Illinois
1962Lincoln Center for the Performing Arts in New York City opens with the first building completed, Philharmonic Hall, now Avery Fisher Hall home of the New York Philharmonic.
1962The Jetsons aired for the first time.
1952Richard Nixon makes his "Checkers speech".
1941The first gas experiments are conducted at Auschwitz.
1932The Kingdom of Hejaz and Nejd is renamed the Kingdom of Saudi Arabia
1922Gdynia Seaport Construction Act passed by the Polish parliament.
1912First Mack Sennett "Keystone Comedy" is released.
1905Norway and Sweden sign the "Karlstad treaty", officially ending the Union between the two countries peacfully.
1884Herman Hollerith patents his mechanical tabulating machine.
1875William Bonney ("Billy the Kid") is arrested for the first time.
1868Grito de Lares (Lares Revolt) occurs in Puerto Rico against Spanish rule.
1846Discovery of Neptune by French astronomer Urbain Jean Joseph Le Verrier and British astronomer John Couch Adams; verified by German astronomer Johann Gottfried Galle
1845The Knickerbockers Baseball Club, the first baseball team to play under the modern rules, is founded in New York.
1806Lewis and Clark return, after exploring the Pacific Northwest of the United States.
1780American Revolution; British Major John Andre arrested as a spy by American soldiers exposing Benedict Arnold's treason.
1779American Revolution; USS Bonhomme Richard, commanded by John Paul Jones, wins a fight against the British ships of war Serapis and Countess of Scarborough off the coast of England.
1642First commencement exercises occur at Harvard College.
1529The Siege of Vienna begins as Suleiman II begins his attack on the city.
1459Battle of Blore Heath, the first major battle of the English Wars of the Roses, is fought at Blore Heath in Staffordshire.