There have been 8 teams that have gone undefeated in NFL history
1920 Akron Pros 8-0-3
1922 Canton Bulldogs 10-0-2
1923 Canton Bulldogs 11-0-1
1929 Green Bay Packers 12-0-1
1934 Chicago Bears 13-0
1942 Chicago Bears 11-0
1972 Miami Dolphins 14-0
2007 New England Patriots 16-0
also the 1948 Cleveland Browns went 14-0 in the AAFC
Of the above teams the 1934 Chicago Bears, 1942 Chicago Bears, and 2007 New England Patriots did not win the championship
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Hundreds of NFL teams, only one has destrfeoyed a perfect season, the '08-'09 Giants.
In 1985 the Chicago Bears (12-0) lost to the Miami Dolphins(8-4) the Bears went on to go 15-1 and win the Super Bowl.
Through the 2010 National Football League season, the Houston Texans are one of four teams that have never played in a Super Bowl. The three other teams are the Cleveland Browns, the Detroit Lions and the Jacksonville Jaguars.
As of the start of the 2010 season, four teams haven't been to the Super Bowl: Jacksonville, Houston, Cleveland, and Detroit.
USC went to the championship game for the 2004 and 2005 seasons, winning in 2004 and losing in 2005, and Oregon for the 2010 season.
260 athletes have gone on to play professional football in the NFL
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