1720s BC
| Millennium: | 2nd millennium BC |
| Centuries: | 19th century BC – 18th century BC – 17th century BC |
| Decades: | 1750s BC 1740s BC 1730s BC – 1720s BC – 1710s BC 1700s BC 1690s BC |
| Years: | 1729 BC 1728 BC 1727 BC 1726 BC 1725 BC 1724 BC 1723 BC 1722 BC 1721 BC 1720 BC |
| Categories: |
Events and trends
- c. 1720 BC–The Hyksos invade and conquer Egypt, establishing their capital at Avaris.[1]
- c. 1720 BC–Adasi, a native king of Assyria, seizes power.
Significant people
- Hammurabi, ruler of Babylon beginning in 1728 BC (according to the short chronology)
- Samsu-iluna, king of Babylon since 1750 BC
- Rim-Sin I, ruler of the city-state of Larsa
- Adasi, usurper king of Assyria