| 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 – Architecture Establishments – Disestablishments |