637
| Years: 633 634 635 636 - 637 - 638 639 640 641 | |
| Decades: 600s 610s 620s - 630s - 640s 650s 660s | |
| Centuries: 6th century - 7th century - 8th century | |
Events
- Arabs conquer Jerusalem
- Battle of al-Qadisiyah: Arabs defeat Persian army, take Persian capital of Ctesiphon
- Battle of Mag Rath: Dalriada influence in Ulster greatly reduced
Deaths