Category:640s

• 640 (2 C, 5 P)
• 641 (2 C, 4 P)
• 642 (2 C, 9 P)
• 643 (2 C, 4 P)
• 644 (2 C, 5 P)
• 645 (2 C, 6 P)
• 646 (2 C, 3 P)
• 647 (2 C, 2 P)
• 648 (2 C, 8 P)
• 649 (2 C, 3 P)

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• 640s beginnings (12 C)
• 640s endings (12 C)

B

• 640s in the Byzantine Empire (2 C, 13 P)

C

• 640s conflicts (2 C, 23 P)

D

• 640s disestablishments (5 C, 4 P)

E

• 640s establishments (9 C, 3 P)

R

• 640s in the Rashidun Caliphate (9 P)
• 640s in religion (2 C)

S

• 640s in the Sasanian Empire (4 P)