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Events on Tuesday 29 December 1891 1
1823 – 1891Leopold Kronecker (1823-1891)Died 29 December 1891, aged 68German mathematician known for foundational work in number theory and algebra. He held constructivist views on mathematics, famously remarking that "God made the integers, all else is the work of man." His disputes with Georg Cantor over set theory shaped debates in mathematical foundations.