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First known Abacus (15 jan 2700 ano antes da era comum – 11 out 2300 ano antes da era comum)

Descrição:

Made from the early Babylonians

Adicionado na linha do tempo:

I.C.T. growth over the centuries

ByBabis Kinigopoulos

29 fev 2020

0

0

255

Data:

15 jan 2700 ano antes da era comum

11 out 2300 ano antes da era comum

~ 399 years

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