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Sumerian Civilization develops highly advanced urban society using resources (dec 22, 4000 BC – jan 10, 2000 BC)
Added to timeline:
Environmental Science Timeline (10 Important Events)
By
Justin Fisher
23 Sep 2017
0
0
641
Date:
dec 22, 4000 BC
jan 10, 2000 BC
~ 2002 years
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