The NFL celebrates its 100th birthday with the two teams still with the league since its launch, the Chicago Bears and the Arizona Cardinals. However, unlike the Cardinals, the Bears are still in the same city where they were founded and their history is much richer.
The Bears have won titles in five of the league's 10 decades. They fielded the NFL's first dynasty and arguably its best team ever. Those teams are part of the 10 greatest Bears teams of all time.
Finished: Lost to Indianapolis Colts 29-17 in Super Bowl XLI
Regular Season Record: 13-3
A breakout season by return specialist Devin Hester and a fierce defense made up for a quarterback controversy as the Bears won the No. 1 seed and made their second Super Bowl. Sadly for them, Peyton Manning was not going to be stopped in his quest for his first championship.
Finished: Beat Washington Redskins 41-21 in NFL Championship Game
Regular Season Record: 8-1-1
The Bears dominated a shortened season due to World War II to win their third title in four seasons.
Finished: Beat Portsmouth Spartans 9-0 to win NFL title
Regular Season Record: 7-1-6
Sporting a backfield that included Red Grange and Bronko Nagurski, the Bears did not score a point in their first four games. Then they got on track and went 7-0-2 in their last nine games. At the end of the season, Chicago was tied with 6-1-4 Portsmouth for the league title (ties were not counted) so they played a tiebreaker game, which the Bears won.
Finished: Beat New York Giants 24-14 in NFL Championship Game
Regular Season Record: 8-2-1
After serving in the Navy during World War II, owner George Halas returned to coach the team. Chicago had gone 3-7 the year before, but "Papa Bear" returned the team to glory as it won its fourth championship of the decade.
Finished: Lost to Washington Redskins 14-6 in NFL Championship Game
Regular Season Record: 11-0
The 1942 Bears scored 376 points and gave up only 84 and were on the verge of a championship three-peat, but they could not close the deal against Washington.
Finished: Beat Washington Redskins 73-0 in NFL Championship Game
Regular Season Record: 8-3
The Bears won their second straight league title in a season best remembered for how it ended. Chicago shocked Washington with its new and revolutionary T formation to win the most lopsided game in NFL history.
Finished: Beat New York Giants 23-21 in NFL Championship Game
Regular Season Record: 10-2-1
In 1933, the NFL split into two divisions, the Eastern and Western, and added a league championship game. Chicago easily won the Western and its kicking game proved the difference in the first title game to secure the team's second straight championship.
Finished: Beat New York Giants 14-10 in NFL Championship Game
Regular Season Record: 11-1-2
Assistant coach George Allen invented the zone defense in the offseason and the Bears overwhelmed opponents who had little to no success against the new scheme. Chicago led the league in fewest rushing, passing, and total yards, and allowed only 10 points a game.
Finished: Beat New York Giants 37-9 in NFL Championship Game
Regular Season Record: 10-1
The Bears split their series against the Packers, winning the first game 25-17 and losing the second by two points. They beat the rest of their opposition by at least 10 points en route to a second straight NFL title.
Finished: Beat New England Patriots 46-10 in Super Bowl XX
Regular Season Record: 15-1
Mythical status aside, the '85 Bears won their division by seven games and were the top seed in the NFC by four. In the playoffs, the Monsters of the Midway shut out their first two opponents and the only touchdown they gave up in the postseason was to the Patriots in garbage time of Super Bowl XX.
— Written by Aaron Tallent, who is part of the Athlon Contributor Network. Tallent is a writer whose articles have appeared in The Sweet Science, FOX Sports’ Outkick the Coverage, Liberty Island and The Washington Post. Follow him on Twitter at @AaronTallent.