John von Neumann — American Mathematician born on December 28, 1903, died on February 08, 1957
John von Neumann was a Hungarian-American pure and applied mathematician, physicist, inventor, and polymath. He made major contributions to a number of fields, including mathematics, physics, economics, computing, and statistics. He was a pioneer of the application of operator theory to quantum mechanics, in the development of functional analysis, a principal member of the Manhattan Project and the Institute for Advanced Study in Princeton, and a key figure in the development of game theory and the concepts of cellular automata, the universal constructor, and the digital computer... (wikipedia)