*. 1912– U.S. forces defeat Nicaraguan rebels under the command of Benjamín Zeledón at the Battle of Coyotepe Hill.
*. 1918– King Boris III of Bulgaria accedes to the throne.
*. 1929– The Kingdom of Serbs, Croats and Slovenes is renamed to Kingdom of Yugoslavia, "Land of the South Slavs".
*. 1930– The German Socialist Labour Party in Poland – Left is founded following a split in DSAPin Łódź.
*. 1932– Iraq gains independence from the United Kingdom.
*. 1935– Second Italo-Abyssinian War: Italy invades Ethiopia under General de Bono.
*. 1949– WERD, the first black-owned radio station in the United States, opens in Atlanta.
*. 1950– Korean War: The First Battle of Maryang San, primarily pitting Australian and British forces against communist China, begins.
*. 1957– The California State Superior Court rules that Allen Ginsberg's Howl and Other Poems is not obscene.
*. 1963– A violent coup in Honduras pre-empts the October 13 election, ends a period of reform, and begins two decades of military rule.
*. 1981– The hunger strike by Provisional Irish Republican Army and Irish National Liberation Army prisoners at the Maze Prison in Northern Ireland ends after seven months and ten deaths.
*. 1990– German reunification: The German Democratic Republic ceases to exist and its territory becomes part of the Federal Republic of Germany. East German citizens became part of the European Community, which later became the European Union. Now celebrated as German Unity Day.
*. 1993– Battle of Mogadishu: A firefight occurs during a failed attempt to capture key officials of warlord Mohamed Farrah Aidid's organisation in Mogadishu, Somalia, costing the lives of 18 American soldiers, and over 350 Somalis.
*. 1995– O. J. Simpson is acquitted of the murders of Nicole Brown Simpson and Ronald Goldman.
*. 2008– The Emergency Economic Stabilization Act of 2008 for the U.S. financial system is signed by President George W. Bush.
*. 2013– At least 134 migrants are killed when their boat sinks near the Italian island of Lampedusa.
*.2013 – The Gambia withdraws from the Commonwealth of Nations