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nov 11, 220 BC - Ábaco chino
Description:
Fueron cuentas de cerámica hechas en el occidente de la dinastía Zhou. El ábaco tenía una cuenta en la parte superior y cuatro en el inferior.
Added to timeline:
Historia Informática
By
Donovan Dementjevas
16 Oct 2018
0
0
383
Date:
nov 11, 220 BC
Now
~ 2248 years ago
Images:
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