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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1673 ano - [1673] Gottfried Leibniz invents the Leibniz wheel.

Descrição:

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.

Adicionado na linha do tempo:

Data:

1 jan 1673 ano
Agora
~ 353 years ago