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6 janv. 1690 - In 1690 Leibnitz developed a machine that could add, subtract, multiply, divide, and calculate square roots. Programming was done by using gears. http://library.thinkquest.org/11309/data/history.htm

Ajouté au bande de temps:

Date:

6 janv. 1690
Maintenaint
~ Il y a 336 ans