At the end of the Neolithic era civilizations began to develop in Mesopotamia. These civilizations were a direct result of an Urban revolution. This revolution was charactorized by the development of large densely populated settlements and the differentiation of the population. These urban areas became civilizations.

Requrements of a Civilization

Centralized Government

Agricultural Intensification

Specialization in Occupations

Class Structure

Merchants and Trade

Development of Science and Writting

State Religion

Rivers and Civilizations