Nearly every decade of NFL has been dominated by at least one dynasty - a team that has won so much that they came to define that era. Whenever people talk about the NFL after the turn of the century the image of Patriots' Bill Belichick and Tom Brady will be shown first. Now let's have a look at how the other decades have stacked up with the all-time dynasties in NFL:
40's Green Bay Packers
50's Cleveland Browns
60's Green Bay Packers
70's Pittsburgh Steelers
80's San Francisco 49ers
90s Dallas Cowboys
21st century New England Patriots