The 1961 NFL season was the 42nd regular season of the National Football League. The league expanded to 14 teams with the addition of the Minnesota Vikings, after the team's owners declined to be charter members of the new American Football League. The schedule was also expanded from 12 games per team to 14 games per team. The Vikings were placed in the Western Conference, and the Dallas Cowboys were switched from the Western Conference to the Eastern. Addition of the Vikings returned the NFL to an even number of teams.
The season ended when the Green Bay Packers defeated the New York Giants 37–0 in the NFL Championship Game. Taken from http://en.wikipedia.org/wiki/1961_NFL_season.

Final Stats:

NFL
Rank	Team
Champion	Green Bay Packers
Runner-Up	New York Giants
10 4	Philadelphia Eagles
8 5 1	Cleveland Browns
8 5 1	Detroit Lions
8 6	Chicago Bears
8 6	Baltimore Colts
7 6 1	San Francisco 49ers
7 7	St. Louis Cardinals
6 8	Pittsburgh Steelers
4 9 1	Dallas Cowboys
4 10	Los Angeles Rams
3 11	Minnesota Vikings
1 12 1	Washington Redskins
AFL
Rank	Team
Champion	Houston Oilers
Runner-Up	San Diego Chargers
9 4 1	Boston Patriots
7 7	New York Titans
6 8	Dallas Texans
6 8	Buffalo Bills
3 11	Denver Broncos
2 12	Oakland Raiders