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Issac Newton born
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Gottfried Leibniz Born
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Leibniz's first integral
Leibniz finds the area of a graph under a function y=f(x) -
Philosophiæ Naturalis Principia Mathematica published.
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Newton and Nicolas Fatio de Duillier become friends.
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Leibniz publishes Supplementum geometriae dimensoriae
Leibniz expresses the inverse relation of integration and differentiation -
Guillaume de l'Hôpital publishes Analyse des Infiniment Petits pour l'Intelligence des Lignes Courbes
Translated "Infinitesimal calculus with applications to curved lines," it was the first textbook on infinitesimal calculus. -
Nicolas Fatio de Duillier accuses Leibniz of plagerism
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Royal Society proclaim Newton the inventor of calculus, Leibniz a fraud.