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Farmers settle in southern Mesopotamia (Iraq) in a area called Sumer. They use irrigation to water their crops.
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The Sumerians build cities that house thousands of people
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The Sumerians invent cuneiform writing, a system made up of wedge-shaped characters.
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The Sumerians were the first to invent the wheel and use it to pull carts.
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Sargon conquers northern and southern Mesopotamia, and founds the worlds first great empire.
