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Events on Friday 19 February 1897 1
1815 – 1897Karl Weierstrass (1815-1897)Died 19 February 1897, aged 81Karl Weierstrass was a German mathematician known as the father of modern analysis for his rigorous formulation of calculus and continuous functions. He taught at the University of Berlin and mentored a generation of mathematicians including Sofia Kovalevskaya. He died in Berlin on 19 February 1897.