How long did the longest Mesopotamian empire last more than 1000 years
about 200 years
less than 100 years
about 400 years

Therefore empires and a common, central government did not last long in Mesopotamia. Generally the time frame for ancient Mesopotamia is around 5,400 BCE, the beginning of the Ubaid period and the rise of urban centers, to around 539 BCE, when Mesopotamia was conquered by the Achaemenid Empire.

Explanation: I hope this helps

number 4. should be the correct answer