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jan 1, 1640 - EL ABACO

Description:

El primer abaco fue inventado por los chinos 500 a.c
se utiliza para hacer cálculos matemáticos como: sumas, restas, multiplicaciones, divisiones, extraer la raíz cuadrada o la raíz cúbica. (1368-1644)

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evolucion de la tecnologia ..

Bypaola
23 Oct 2018
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Date:

jan 1, 1640
Now
~ 386 years ago

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