// todo need optimize like in event.jsp. Add indexing or not indexing this page. Sumerian Abacus (1 janv. 2700 av. J.-C. – 1 janv. 2300 av. J.-C.) (La bande de temps)
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Sumerian Abacus (1 janv. 2700 av. J.-C. – 1 janv. 2300 av. J.-C.)

Description:

During this time period the first abacus use was seen with the Sumerians

Ajouté au bande de temps:

Educational Technology Timeline

ByIan Fisher
17 oct. 2018

Date:

1 janv. 2700 av. J.-C.
1 janv. 2300 av. J.-C.
~ 400 years
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