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Sumerian Abacus (jan 1, 2700 BC – jan 1, 2300 BC) (Timeline)
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Sumerian Abacus (jan 1, 2700 BC – jan 1, 2300 BC)
Description:
During this time period the first abacus use was seen with the Sumerians
Added to timeline:
Educational Technology Timeline
By
Ian Fisher
17 Oct 2018
0
0
255
Date:
jan 1, 2700 BC
jan 1, 2300 BC
~ 400 years
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