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Period: 3500 BCE to 2350 BCE
Sumerian civilization
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Period: 3100 BCE to 20 BCE
Egyptian civilization
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Period: 3000 BCE to 1800 BCE
Norte Chico civilization
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Period: 2200 BCE to 1700 BCE
Indus Valley civilization
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Period: 2200 BCE to 1700 BCE
Oxus civilization
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Period: 2200 BCE to 1 BCE
Chinese civilization
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Period: 1200 BCE to 400 BCE
Olmec civilization