2333 BC: 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 executed by being hanged, drawn and quartered

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

1935: Italy invades Ethiopia, starting the Second Italo-Ethiopian War
The German flag flies at midnight at the Reichstag building in BerlinGerman Reunification
1990 Reunification of East and West Germany. West German flag is raised above the Brandenburg Gate at the stroke of midnight.

Source: Onthisday.com