Independence Day in Latvia (1918)
National Day in Oman (1940)
1210 – Otto IV, Holy Roman Emperor was excommunicated by Pope Innocent III after he commanded the Pope to annul the Concordat of Worms.
1878 – Soprano Marie Selika Williams (pictured) became the first African-American artist to perform at the White House.
1928 – Walt Disney's Steamboat Willie, the first completely post-produced synchronized sound animated cartoon, was released.
1956 – In the Polish embassy in Moscow Soviet leader Nikita Khrushchev said "We will bury you" while addressing Western envoys, prompting them to leave the room.
1991 – Croatian War of Independence: The Yugoslav People's Army captured the Croatian city of Vukovar, ending an 87-day siege.