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6 gen 500 anni a. C. - Abacus
Descrizione:
Invention of the abacus in China
Abascusus are DIGITAL, meaning actual integers
Aggiunto al nastro di tempo:
Computers
By
Julien Martel
30 nov 2018
0
0
223
Data:
6 gen 500 anni a. C.
Adesso
~ 2526 years ago
Geo-marchi:
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