1927 - Born on the 19th of March.
1949 - He was a graduate student at Princeton University.
1954 - He enrolled in a seminar where Oliver Selfridge "described a running computer program".
1956 - He contributed to the Information Processing Language.
1975 - He was awarded the ACM's A.M. Turing Award.
1992 - He died on the 19th of July.
Page last updated: 1:06pm, 15th Jun '07