Answer:
The peoples of Sumer are among the earliest denizens of Mesopotamia. By about 4000 BCE, the Sumerians had organized themselves into several city-states that were spread throughout the southern part of the region. These city-states were independent of one another and were fully self-reliant centers, each surrounding a temple that was dedicated to god or goddess specific to that city-state. Each city-state was governed by a priest king.
Sumerian Cities
Though they shared the Sumerian language as a form of communication, these city-states shared little else, and were in a constant state of warfare, often battling each other for control over water supplies and the fertile land. A typical Sumerian city was well fortified with thick, tall walls, which the king was responsible for maintaining, in hopes of deterring would-be attackers. Within a Sumerian city’s walls were avenues that were used for religious processionals, and high, stepped temples know as ziggurats. Sumerian cities often had several ziggurats, each dedicated to a different god or goddess.
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