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  The Sumerians began in the lower areas of the Tigris and Euphrates rivers in about 4000 BC.
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  Sumerians were very religious and had a strong priesthood, and they had different classes of people.Sumerians had city-states that were separated by temples.
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  The Assyrians arose and lived in the upper mesopotamia on the Tigris river.
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  The Assyrians had a Monarchy government type, and were ruled by kings. Most of the Assyrian cities were established by 2600.
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  The Sumerian population disappears from military domination killing them all off.
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  The Old Babylonians came after the Sumerians, lasting about 400 years before falling.
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  Named the Unifiers of the mesopotamia came from the west of the Euphrates river. The Babylonians ran a great economy of trade, and they had laws.
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  The Old Babylonians fell around 1600 BC, after their leader Hammurabi died the Babylonian people slowly died off over the next 150 years.
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  In 626 the New Babylonians took over the Assyrians, regaining the Babylonian leadership.
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  The New Babylonians had large estates and started cities with their own temples and laws for the city granted by the kings.
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  After the death of their leader in 627 BC the Empire fell , but a few Assyrians can still be found today.
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  The New Babylonians fell due to a war that they fought and ended up losing.