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17h 44min, jan 1, 1942 y - Calculadora de Pascal (1642)

Description:

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

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Luia

ByLuis Dominguez

9 Nov 2017

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Date:

17h 44min, jan 1, 1942 y

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~ 83 years ago

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