John Horton Conway, English mathematician (born 1937)

John Horton Conway was an English mathematician. He was active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. He also made contributions to many branches of recreational mathematics, most notably the invention of the cellular automaton called the Game of Life.

April 11 is the 101st day of the year in the Gregorian calendar; 264 days remain until the end of the year.