2017: A suicide attack on a mosque in Heart, Afghanistan kills 20 people.
2008: Eleven mountaineers from international expeditions died on K2, the second-highest mountain on Earth in the worst single accident in the history of K2 mountaineering.
1961: U.S. Defense Secretary Robert McNamara orders the creation of the Defense Intelligence Agency (DIA), the nation's first centralized military espionage organization.
1946: Leaders of the Russian Liberation Army, a force of Russian prisoners of war that collaborated with Nazi Germany, are executed in Moscow, Soviet Union for treason.
1943: World War II: Operation Tidal Wave also known as "Black Sunday", was a failed American attempt to destroy Romanian oil fields.
1937: Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
1936: The Olympics opened in Berlin with a ceremony presided over by Adolf Hitler.
1933: Anti-Fascist activists Bruno Tesch, Walter Möller, Karl Wolff and August Lütgens executed by the Nazi regime in Altona.
1801: First Barbary War: The American schooner USS Enterprise captures the Tripolitan polacca Tripoli in a single-ship action off the coast of modern-day Libya.
1798: French Revolutionary Wars: Battle of the Nile (Battle of Aboukir Bay): Battle begins when a British fleet engages the French Revolutionary Navy fleet in an unusual night action.
1774: British scientist Joseph Priestley discovers oxygen gas, corroborating the prior discovery of this element by German-Swedish chemist Carl Wilhelm Scheele.