From Wikipedia, the free encyclopedia.
Centuries: 6th century 7th century 8th century
Decades: 590s - 600s - 610s - 620s - 630s - 640s - 650s - 660s - 670s - 680s - 690s
Years: 640 641 642 643 644 645 646 647 648 649 650
Events
- early 640s - Arab conquest of Egypt
- late 640s - first Arab fleet created
