(34th century BC - 33rd century BC - 32nd century BC - other centuries)
(5th millennium BC - 4th millennium BC - 3rd millennium BC)
Events
Significant persons
- About 250 million people occupied planet
Inventions, discoveries, introductions
Last updated: 02-08-2005 12:03:42
Last updated: 04-25-2005 03:06:01