Question by Congi: around what time period were the tigres and euphrates rivers used? also indus and ganges? huang he &yangtze ?
Answer by loveanonymoty
I am familiar with the tigres and euphrates river of mesopotamia. During the neolithic period, men discovered how to domesticate animals and cultivate food and in turn, civilization occurred. Permanent constructions of settlements usually occur near rivers. And also during this period the discovery of using copper alloy in conjuction with tin created a stronger metal, bronze. So I would confidently say during the late neolithic period.
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