1803 – Lewis and Clark start their expedition to the west by leaving Pittsburgh, Pennsylvania at 11 in the morning.
1886 – An earthquake kills 100 in Charleston, South Carolina.
1982 – Anti-government demonstrations are held in 66 Polish cities to commemorate the second anniversary of the Gdańsk Agreement.
1993 – Russia completes removing its troops from Lithuania.
2006 – Edvard Munch's famous painting The Scream, stolen on August 22, 2004, is recovered in a raid by Norwegian police.