1810 - Colombia declared independence from Spain.
1881 - Sioux Indian leader Sitting Bull, a fugitive since the Battle of the Little Big Horn, surrendered to federal troops.
1917 - The draft lottery in World War I went into operation.
1944 - An attempt by a group of German officials to assassinate Adolf Hitler failed. The bomb exploded at Hitler's Rastenburg headquarters. Hitler was only wounded.
1951 - Jordan's King Abdullah Ibn Hussein was assassinated in Jerusalem.
1969 - Apollo 11 astronauts Neil Armstrong and Edwin E. Aldrin, Jr. became the first men to walk on the moon.
1974 - Turkish forces invaded Cyprus.
1976 - America's Viking I robot spacecraft made a successful landing on Mars.