2333 BC: In 2333 BC, the state of Gojoseon (modern-day Korea) is founded by Dangun Wanggeom during the reign of Chinese Emperor Yao

52 BC: Vercingetorix, leader of the Gauls, surrenders to the Romans under Julius Caesar, ending the siege and Battle of Alesia

1283: Dafydd ap Gruffydd, Prince of Gwynedd, Wales, becomes the first person to be executed by being hanged, drawn, and quartered

1922: First facsimile photo is sent over city telephone lines in Washington, D.C.

1935: Italy invades Ethiopia, starting the Second Italo-Ethiopian War

1990: Reunification of East Germany and West Germany; the West German flag is raised above the Brandenburg Gate at the stroke of midnight

Source: Onthisday.com