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17 h 44 m, 1 ene 1942 año - Calculadora de Pascal (1642)

Descripción:

Blaise Pascal inventó una máquina de sumar mecánica para ayudar a su padre a calcular impuestos.

Añadido al timeline:

Luia

ByLuis Dominguez
9 nov 2017

fecha:

17 h 44 m, 1 ene 1942 año
Ahora mismo
~ 82 years ago

Fotos:

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