Association-an organization of people with a common purpose and having a formal <span>structure.
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They did not join together. the nubia and the egypts were against eachother trying to create wars in order to end eachother
Answer:
Mesopotamia was settled between the Tigris and Euphrates Rivers in the Fertile Crescent. Egyptians believed in polytheism. ... The people of Mesopotamia had advanced irrigation and farming. They had great architecture such as the ziggurats.