Gottfried Leibniz

Gottfried Wilhelm (von) Leibniz (1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath and philosopher who occupies a prominent place in the history of mathematics and the history of philosophy, having developed differential and integral calculus independently of Isaac Newton. https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz