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20 lugl 2700 anni a. C. - Creación del ábaco

Descrizione:

Su inicio fue en una superficie plana y piedras que se movían sobre líneas dibujadas con polvo.

Aggiunto al nastro di tempo:

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Bymaal
25 gen 2019
0
0
184

Data:

20 lugl 2700 anni a. C.
Adesso
~ 4729 years ago

Immagini:

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