births
June 21, 1942
Paul Chernoff, American mathematician and poet (died 2017)
Paul Chernoff
Paul Robert Chernoff was an American mathematician, specializing in functional analysis and the mathematical foundations of quantum mechanics. He is known for Chernoff's Theorem, a mathematical result in the Feynman path integral formulation of quantum mechanics. He was also the author of limericks.
June 21
June 21 is the 172nd day of the year in the Gregorian calendar; 193 days remain until the end of the year.