John von Neumann

John von Neumann (December 28. 1903 – February 8. 1957) was a Hungarian-American mathematician and physicist.
He contributed to many fields, including:
He is generally regarded as a prodigy, polymath and one of the most important mathematicians of the 20th century.
He was a member of a group called the 'Martians'. They were Hungarian immigrants to the US of extraordinary intellect. Others people in this group were Edward Teller, Paul Erdős, Leó Szilárd and Eugene Wigner.