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4 jan 500 ano antes da era comum - Abacus (counting frame) Counting tool that consists of beads or disks that can be moved up/down to assist in counting or keeping track of data

Adicionado na linha do tempo:

History of computer Project

ByEmily DeVore
20 out 2017
0
0
476

Data:

4 jan 500 ano antes da era comum
Agora
~ 2527 years ago

Imagens:

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