Leopold Kronecker — German Mathematician born on December 07, 1823, died on December 29, 1891
Leopold Kronecker was a German mathematician who worked on number theory, algebra and logic. He criticized Cantor's work on set theory, and was quoted by Weber as having said, "Die ganzen Zahlen hat der liebe Gott gemacht, alles andere ist Menschenwerk". Kronecker was a student and lifelong friend of Ernst Kummer... (wikipedia)