640s

Millennium:	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

The 640s decade ran from January 1, 640, to December 31, 649.

Events and trends

• 640—Occupation of Egypt and Syria by followers of Muhammad - known as the Muslim conquest.
• 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.