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April 1, 2024
1987800
163452
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1 gen 1673 anni - [1673] Gottfried Leibniz invents the Leibniz wheel.

Descrizione:

Building on Blaise Pascal's work, the Leibniz wheel worked by rotating wheels to add and subtract numbers. This was the first mass produced calculator.

Aggiunto al nastro di tempo:

Data:

1 gen 1673 anni
Adesso
~ 351 years ago