630s BC
| Millennium: | 1st millennium BC |
| Centuries: | 8th century BC – 7th century BC – 6th century BC |
| Decades: | 660s BC 650s BC 640s BC – 630s BC – 620s BC 610s BC 600s BC |
| Years: | 639 BC 638 BC 637 BC 636 BC 635 BC 634 BC 633 BC 632 BC 631 BC 630 BC |
| Categories: | Births – Deaths |
Events and trends
- 639 BC - Interregnum ends and Ancus Marcius becomes the king of Rome.
- 636 BC — Duke Wen of Jin ascends to power in the State of Jin during the Zhou Dynasty of China.
- 632 BC — Cylon, Athenian noble, seizes the Acropolis in a failed attempt to become king.
- 632 BC — In the Battle of Chengpu, the Chinese kingdom of Jin and her allies defeat the kingdom of Chu and her allies.
- 631 BC — Founding of Cyrene, a Greek colony in Libya (North Africa) (approximate date).
- 631 BC — Sadyattes becomes king of Lydia.
Significant people
- 638 BC—Birth of Solon, lawmaker of Athens (approximate date)
- 637 BC—Death of Duke Xiang of Song, China
- 635 BC—Birth of Thales, Greek philosopher (d. 543 BC) (approximate date)