1943 – World War II: A Japanese submarine sinks AHS Centaur off the coast of Queensland.
1948 – Israel is declared to be an independent state and a provisional government is established. Immediately after the declaration, Israel is attacked by the neighboring Arab states, triggering the 1948 Arab–Israeli War.
1951 – Trains run on the Talyllyn Railway in Wales for the first time since preservation, making it the first railway in the world to be operated by volunteers.
1955 – Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
1970 – Andreas Baader is freed from custody by Ulrike Meinhof, Gudrun Ensslin and others, a pivotal moment in the formation of the Red Army Faction.
1973 – Skylab, the United States' first space station, is launched.
1988 – Carrollton bus collision: A drunk driver traveling the wrong way on Interstate 71 near Carrollton, Kentucky hits a converted school bus carrying a church youth group. Twenty-seven die in the crash and ensuing fire.