645
Centuries: 6th century - 7th century - 8th centuryDecades: 590s 600s 610s 620s 630s - 640s - 650s 660s 670s 680s 690s
Years: 640 641 642 643 644 - 645 - 646 647 648 649 650
Events
- End of the reign of Empress Kogyoku of Japan
- Emperor Kotoku ascends to the throne of Japan
- Byzantines recapture Alexandria from the Arabs