30th century BC

(31st century BC - 30th century BC - 29th century BC - other centuries)

(4th millennium BC - 3rd millennium BC - 2nd millennium BC)

Events

* 3000 BC - Djer, second pharaoh of Egypt, started to reign.
* 2999 BC - Djer, second pharaoh of Egypt, died.
* 2925 - 2776 BC - First Dynasty wars in Egypt
* ca. 2920 BC - Djet, third pharaoh of Egypt.
* 2900 BC - Beginning of the Early Dynastic Period I in Mesopotamia.

Significant persons

Inventions, discoveries, introductions

* The shekal was introduced in Mesopotamia as a monetary and weight unit, see ancient weights and measures.