35th century BC
Events
- c. 3500 BC-2340 BC - Sumer.
- 3450 BC (?) — Stage IId of the Naqada culture in Egypt.
- ? — The Sahara Desert starts to form from semi-arid savannah, through desertification.
- Regarded as the beginning of recorded history, though it is likely there were earlier records that have since been lost.
Significant persons
Inventions, discoveries, introductions