- 1863 – President Abraham Lincoln delivers the Gettysburg Address on a Civil War battlefield in Pennsylvania.
- 1932 – Bonnie Parker and Clyde Barrow carried out the first of their series of bank robberies.
- 1950 – US General Dwight D. Eisenhower becomes Supreme Commander of NATO.
- 1969 – Apollo 12 astronauts Pete Conrad and Alan Bean become the third and fourth humans to walk on the moon.
- 1985 – President Ronald Reagan and Soviet leader Mikhail Gorbachev met for the first time in Geneva, Switzerland.
- 1998 – The House of Representatives Judiciary Committee begins impeachment hearings against President Bill Clinton.
