1260 - Kublai Khan, grandson of Genghis Khan, becomes ruler of the Mongol Empire
1891 - Music Hall (Carnegie Hall) opens in New York, Tchaikovsky is guest conductor
1941 - Ethiopian Emperor Haile Selassie returns to Addis Ababa
1955 - West Germany is granted full sovereignty by its three occupying powers
1965 - First largescale US Army ground units arrive in South Vietnam
1980 - Siege at Iranian Embass…
