Harald Bohr

lived from 1887 to 1951

Harald Bohr worked on Dirichlet series, and applied analysis to the theory of numbers. He is (as far as we know) the only mathematician to win an Olympic medal (a silver for representing Denmark at soccer in 1908).

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Bohr_Harald.html