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dec 23, 3500 BC - Se inventa el Ábaco

Description:

El ábaco es un instrumento que sirve para efectuar operaciones aritméticas sencillas; sumas, restas, divisiones y multiplicaciones y otras más complejas

Added to timeline:

Alexander Chicas 1°-K-ITSI

ByAlexander Rivas
31 Oct 2017
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Date:

dec 23, 3500 BC
Now
~ 5530 years ago

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