Currently alive, at 81 years of age.
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.