764 * Empress ShÅtoku succeeds Emperor Junnin on the throne of Japan. * Telets succeeds Subin as monarch of Bulgaria. * Maurizio Galbaio becomes Doge of Venice. * According to the historian Theophanes, the Black Sea melted and ice bergs floated past Constantinople. * Offa of Mercia conquers Kent, and installs Egbert II on the Kentish throne. * Tibetan troops occupy Chang'an, the capital of the Chinese Tang Dynasty, for fifteen days.