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1 ene 2400 año aC - Abacus Invented

Descripción:

1. As far as we know, this was the first calculating device ever.
2. Predating Pascal by a few millenia, it shows that even early civilizations were inventing tools to help them do their accounting.
3. Still used today, though they're becoming increasingly obsolete with pocket calculators becoming more accessible

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fecha:

1 ene 2400 año aC
Ahora mismo
~ 4428 years ago