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Uruk is a example of an advanced city because Uruk has walled city with an extensive canal system, and temples

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This is one of the Canals in Uruk.

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One example is surpluses helped long distance trade

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They had a lot of extra food so they traded there extras for more valueable iteams.

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One example of a specialized workers are metal workers. These workers got paid in grain.

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This shows a few people who are metal workers.

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One example of record keeping is Cuneiform which is a form of writing.

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This is an example of cuneiform.

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One example of Advanced Technology is ramps and Arches.

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This is an example of Advanced Technology because ramps could have helped people move things or it could help people walk on things better.