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jan 1, 20000 BC - Hueso de Ishango (25000 - 20000 aC).
Description:
Es posible se hay utilizado para sumar o multiplicar.
Added to timeline:
T1P1_1800_20181008023_Rivas Flores_Stephany
By
Emily Cortés
31 May 2021
0
0
259
Date:
jan 1, 20000 BC
Now
~ 22040 years ago
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