Millennia:	1st millennium
Centuries:	6th century - 7th century - 8th century
Decades:	610s 620s 630s - 640s - 650s 660s 670s
Years:	640 641 642 643 644 645 646 647 648 649
Categories:	Births - Deaths - Architecture Establishments - Disestablishments

Events and Trends

• 640 — Occupation of Egypt and Syria by followers of Muhammad
• 642 — Conquest of Persia by followers of Muhammad which with those from the 630s made up the united Islamic Caliphate.
• late 640s — First Arab Islamic fleet created.