Athenian and Plataean Hoplites commanded by General Miltiades drive back a Persian invasion force under General Datis at Marathon.
A combined Austrian and Polish army defeats the Turks at Kahlenberg and lifts the siege on Vienna, Austria.
Despite his failed efforts to suppress the American Revolution, Lord Cornwallis is appointed governor general of India.
Adolf Hitler joins German Worker's Party.
In response to the invasion of Poland, the French Army advances into Germany. On this day they reach their furthest penetration-five miles.
President Richard Nixon orders a resumption in bombing North Vietnam.
East and West Germany, along with the UK, US and USSR—the Allied nations that had occupied post-WWII Germany—sign the final settlement for reunification of Germany.
Space Shuttle Endeavor takes off on NASA's 50th shuttle mission; its crew includes the first African-American woman in space, the first married couple, and the first Japanese citizen to fly in a US spacecraft.
UN lifts sanctions against Libya in exchange for that country accepting responsibility for the bombing of Pan Am Flight 103 in 1988 and paying recompense to victims' families.