The 1946 NFL season was the 27th regular season of the National Football League. Before the season, Elmer Layden resigned as NFL Commissioner and Bert Bell, co-founder of the Philadelphia Eagles, replaced him. Meanwhile, the All-America Football Conference was formed to rival the NFL, and the Rams became the first NFL team based on the West Coast after they relocated from Cleveland, Ohio to Los Angeles. The last regular season game played on Tuesday until the 2010 season happened on October 1, between New York and Boston.
The season ended when the Chicago Bears defeated the New York Giants in the NFL Championship Game. Taken from http://en.wikipedia.org/wiki/1946_NFL_season.

Final stats:

NFL
Rank	Team	Head Coach	Top QB	Top RB	Top WR
Champion	Chicago Bears	George Halas	Sid Luckman	Hugh Gallarneau	Ray McLean
Runner-Up	New York Giants	Steve Owen	Frank Filchock	Frank Filchock	Frank Liebel
6 4 1	Los Angeles Rams	Adam Walsh	Bob Waterfield	Fred Gehrke	Jim Benton
6 5	Chicago Cardinals	Jimmy Conzelman	Paul Christman	Pat Harder	Billy Dewell
6 5	Phladelphia Eagles	Greasy Neale	Tommy Thompson	Steve Van Buren	Jack Ferrante
6 5	Green Bay Packers	Curly Lambeau	Irv Comp	Tony Canadeo	Clyde Goodnight
5 5 1	Washington Redskins	Turk Edwards	Sammy Baugh	Dick Todd	Steve Bagarus
5 5 1	Pittsburgh Steelers	Jock Sutherland	Bill Dudley	Bill Dudley	Tony Bova
2 8 1	Boston Yanks	Herb Kopf	Paul Governali	John Grigas	Hal Crisler
1 10	Detroit Lions	Gus Dorais	Dave Ryan	Camp Wilson	John Greene
AAFC
Champion	Cleveland Browns	Paul Brown	Otto Graham	Marion Motley	Dante Lavelli
Runner-Up	New York Yankees	Ray Flaherty	Ace Parker	Spec Sanders	Spec Sanders
9 5	San Francisco 49ers	Buck Shaw	Frankie Albert	Norm Standlee	Alyn Beals
7 5 2	Los Angeles Dons	Dudley DeGroot	Charlie O'Rourke	John Kimbrough	Dale Gentry
5 6 3	Chicago Rockets	Bob Dove	Bob Hoernschemeyer	Bob Hoernschemeyer	Elroy Hirsch
3 10 1	Buffalo Bisons	Red Dawson	George Terlep	Vic Kulbitski	Fay King
3 10 1	Brooklyn Dodgers	Mal Stevens	Glenn Dobbs	Glenn Dobbs	Saxon Judd
3 11	Miami Seahawks	Hampton Pool	Marion Pugh	Pres Johnston	Lamar Davis