- 1790 The supposedly impenetrable Turkish fortress of Izmail is stormed and captured by Suvorov and his Russian armies during the Russo-Turkish War (1787–1792)
- 1849 The execution of Fyodor Dostoevsky is called off at the last second.
- 1885 Itō Hirobumi, a samurai, becomes the first Prime Minister of Japan.
- 1989 After 23 years of dictatorial rule, Romania ousts Nicolae Ceausescu
- 1990 Lech Walesa sworn in as Poland's 1st popularly elected president
- 2010 The repeal of the Don't Ask Don't Tell policy, the 17-year-old policy banning on homosexuals serving openly in the United States military, was signed into law by President Barack Obama.
Colo is born, the first gorilla to be bred in captivity at Columbus Zoo and Aquarium, Columbus Ohio
On December 22, 1956