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History of calculus - Wikipedia
Who Invented Calculus? A Brief History of Calculus
Calculus - Wikipedia
Mathematics - Calculus, Derivatives, Integrals | Britannica
Newton and Leibniz: The Fathers of Calculus - Oxford Scholastica
A history of the calculus - MacTutor History of Mathematics …
Who really invented calculus? - BBC Science Focus Magazine
A Brief History of Calculus - Wyzant Lessons