1939 - Born on the 18th of October at Carnegie, Pennsylvania U.S.A.
1958 - He played football at University of Pittsburgh
1961 - He was drafted by Chicago Bears (an NFL football team) in the NFL Draft.
1963 - He played in NFL championship and they defeated New York Giants (an NFL football team).
1967 - He was traded to the Philadelphia Eagles (NFL football team).
1969 - He was traded off to the Dallas Cowboys (NFL football team).
1972 - He retired as a professional football player, immediately he was hired as an assistant coach by Dallas Cowboys.
1982 - He began his career as a head coach of Chicago Bears.
1985 - He was awarded as NFL coach of the year.
- He was arrested and convicted of DWI (Driving While Intoxicated)
1986 - He was enshrined in the College Football Hall Of Fame (museum devoted to college football).
1992 - He was fired as a head coach of Chicago Bears.
- He working as an analyst on NFL Live which broadcast on NBC as a color commentator for many other NBC broadcasts.
1997 - He returned for three seasons, as a head coach to the New Orleans Saints (NFL football team)
1999 - He was ranked number 90 on "The Sporting News" (American based sports weekly magazine) list of the 100 Greatest Football Players.
2007 - He is now working on ESPN Sports channel.
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