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3 ore 25 min, 13 agos 1368 anni - el abaco

Descrizione:

el primer abaco fue creado el 13 de agosto de 1368 por los chinos para sumas, restas y multiplicaciones

Aggiunto al nastro di tempo:

historia de las computadoras

Bysantiago chamorro :v

15 nov 2019

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Data:

3 ore 25 min, 13 agos 1368 anni

Adesso

~ 657 years ago

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