1963 -- Graduates from Harvard University with a B.S. in Physics
1968 -- Receives from Harvard University a Ph.D. in mathematics
1967 -- Joins Bell Labs, following his father, Alistair E. Ritchie, who had a long career there
1968 -- Joins the Bell Labs team working on Multics, a joint effort of Bell Labs, MIT and GE to develop a general computer operating system
1972 -- Creates C language
1989 -- Receives with Ken Thompson the NEC C&C Prize for significant contributions to computer technology
1983 -- Named Bell Labs Fellow
19?? -- Appointed head, System Software Research Department in the Computer Scienes Research Center at Bell Labs, Murray Hill, N.J.
1988 -- Named to the U.S. National Academy of Engineering
1995 -- Heads the effort to create the Plan 9 operating system
1996 -- Heads the effort to create the Inferno(tm) operating system
1999 -- Receives with Kenneth Thompson the U.S. National Medal of Technology (link to ???) for the development of the UNIX system
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