Many people only think of the Super Bowl as the championship of the NFL. However, The NFL started in 1920. In the beginning of the league, the champions were decided by best overall record. In 1932, there was a tie, and the league had a one game playoff to decide the champs. After that the league was split into two divisions, and in 1933 the first official playoff system began. Since the beginning of the league however, the Green Bay Packers have won 13 championships (4 in the Super Bowl or 'modern era'). Chicago is second with 9 (1 in 'modern era') followed by the Giants with 8 (4 in modern era) then the Steelers with 6 (all in the modern era).

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