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6 jan 500 ano antes da era comum - Abacus
Descrição:
Invention of the abacus in China
Abascusus are DIGITAL, meaning actual integers
Adicionado na linha do tempo:
Computers
By
Julien Martel
30 nov 2018
0
0
223
Data:
6 jan 500 ano antes da era comum
Agora
~ 2526 years ago
Geo-tags:
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