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17 janv. 1915 - el ábaco
Description:
el ábaco es un instrumento que sirve para efectuar operaciones aritméticas sencillas y fue inventado por los chinos
Ajouté au bande de temps:
viviana
By
safari
1 oct. 2018
0
0
341
Date:
17 janv. 1915
Maintenaint
~ Il y a 109 ans
Les images:
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