A group of 18 men, 11 standing in back and seven sitting in front. Above the men, centered in the middle of the poster, is text that says "Worlds Champs". Under that is the phrase "Akron Professionals" – the year 1920 is placed between "Akron" and "Professionals".
The 1920 Akron Pros were named the first APFA (NFL) champions.

The National Football League champions, prior to the merger between the National Football League (NFL) and American Football League (AFL) in 1970, were determined by two different systems. The National Football League was established on September17, 1920, as the American Professional Football Association (APFA). The APFA changed its name in 1922 to the National Football League, which it has retained ever since. From 1921 to 1931, the APFA/NFL determined its champion by overall win–loss record, with no playoff games; ties were not counted in the winning percentage total. The APFA did not keep records of the 1920 season; they declared the Akron Pros, who finished the season with an 8–0–3 (8 wins, 0 losses, 3 ties) record, as the league's first champions by a vote of the owners. The Canton Bulldogs won two straight championships from 1922 to 1923, and the Green Bay Packers won three in a row from 1929 to 1931.

The 1932 NFL season resulted in a tie for first place between the Chicago Bears and Portsmouth Spartans, and could not be resolved by the typical win–loss system. To settle the tie, a playoff game was played; Chicago won the game and the championship. The following year, the NFL split into two divisions, and the winner of each division would play in the NFL Championship Game. In 1967, the NFL and the rival AFL agreed to merge, effective following the 1969 season; as part of this deal, the NFL champion from 1966 to 1969 would play the AFL champion in an AFL–NFL World Championship Game in each of the four seasons before the completed merger. The NFL Championship Game was ended after the 1969 season, succeeded by the NFC Championship Game. The champions of that game play the champions of the AFC Championship Game in the Super Bowl to determine the NFL champion.

From 1934 to 1967, teams were regularly awarded the Ed Thorp Memorial Trophy (a custom cast silver trophy) for winning the championship, with the team keeping the trophy for a year; the 1960, 1968, and 1969 champions were not engraved onto the trophy for inconclusive reasons. The Green Bay Packers won the most NFL championships before the merger, winning eleven of the fifty championships. The Packers were also the only team to win three straight championships, an achievement they accomplished twice: from 1929 to 1931 and from 1965 to 1967, the latter stretch being the first since the NFL went to a divisional system in 1933. The Chicago Bears won a total of eight titles, and the Cleveland Browns, Detroit Lions, and New York Giants each won four. The Bears recorded the largest victory in a championship game, defeating the Washington Redskins 73–0 in the 1940 NFL Championship Game; six other title games ended in a shutout as well. The Philadelphia Eagles recorded two consecutive shutouts in 1948 and 1949. New York City hosted the most championship games (eight), while the highest-attended title game was the 1955 NFL Championship Game, where 85,693 fans showed up in Los Angeles to watch the Browns beat the Rams 38–14.

APFA/NFL champions (1920–1932)

Champion determined by win–loss percentage, with ties excluded. The number in parentheses indicates the number of championships the franchise had won to that point.

SeasonChampionWinsLossesTiesPct.Runner-upWinsLossesTiesPct.Ref.
1920Akron Pros8031.000Decatur Staleys1012.909
1921Chicago Staleys911.900Buffalo All-Americans912.900
1922Canton Bulldogs10011.000Chicago Bears930.750
1923Canton Bulldogs (2)11011.000Chicago Bears921.818
1924Cleveland Bulldogs711.875Chicago Bears614.857
1925Chicago Cardinals1121.846Pottsville Maroons1020.833
1926Frankford Yellow Jackets1412.933Chicago Bears1213.923
1927New York Giants1111.917Green Bay Packers721.778
1928Providence Steam Roller812.889Frankford Yellow Jackets1132.786
1929Green Bay Packers12011.000New York Giants1311.929
1930Green Bay Packers (2)1031.769New York Giants1340.765
1931Green Bay Packers (3)1220.857Portsmouth Spartans1130.786
1932Chicago Bears (2)716.875Green Bay Packers1031.769

NFL champions (1933–1969)

Numbers in parentheses in the table indicate the number of times that team won the NFL championship as of the championship game.

Divisions/Conferences
Eastern Division (1933–1949)‡Western Division (1933–1949)^
American Conference (1950–1952)‡National Conference (1950–1952)^
Eastern Conference (1953–1969)‡Western Conference (1953–1969)^
NFL Championship Games
SeasonDateWinning teamScoreLosing teamVenueCityAttendanceRef(s)
1933December 17, 1933Chicago Bears (3)^23–21New York Giants‡Wrigley FieldChicago, Illinois26,000
1934December 9, 1934New York Giants (2)‡30–13Chicago Bears^Polo GroundsNew York City, New York35,059
1935December 15, 1935Detroit Lions26–7New York Giants‡University of Detroit StadiumDetroit, Michigan15,000
1936December 13, 1936Green Bay Packers (4)^21–6Boston Redskins‡Polo Grounds (2)New York City, New York (2)29,545
1937December 12, 1937Washington Redskins‡28–21Chicago Bears^Wrigley Field (2)Chicago, Illinois (2)15,870
1938December 11, 1938New York Giants (3)‡23–17Green Bay Packers^Polo Grounds (3)New York City, New York (3)48,120
1939December 10, 1939Green Bay Packers (5)^27–0New York Giants‡Dairy BowlWest Allis, Wisconsin32,279
1940December 8, 1940Chicago Bears (4)^73–0Washington Redskins‡Griffith StadiumWashington, D.C.36,034
1941December 21, 1941Chicago Bears (5)^37–9New York Giants‡Wrigley Field (3)Chicago, Illinois (3)13,341
1942December 13, 1942Washington Redskins (2)‡14–6Chicago Bears^Griffith Stadium (2)Washington, D.C. (2)36,006
1943December 26, 1943Chicago Bears (6)^41–21Washington Redskins‡Wrigley Field (4)Chicago, Illinois (4)34,320
1944December 17, 1944Green Bay Packers (6)^14–7New York Giants‡Polo Grounds (4)New York City, New York (4)46,016
1945December 16, 1945Cleveland Rams^15–14Washington Redskins‡Cleveland StadiumCleveland, Ohio32,178
1946December 15, 1946Chicago Bears (7)^24–14New York Giants‡Polo Grounds (5)New York City, New York (5)58,346
1947December 28, 1947Chicago Cardinals (2)^28–21Philadelphia Eagles‡Comiskey ParkChicago, Illinois (5)30,759
1948December 19, 1948Philadelphia Eagles‡7–0Chicago Cardinals^Shibe ParkPhiladelphia, Pennsylvania36,309
1949December 18, 1949Philadelphia Eagles (2)‡14–0Los Angeles Rams^Los Angeles Memorial ColiseumLos Angeles, California27,980
1950December 24, 1950Cleveland Browns‡30–28Los Angeles Rams^Cleveland Stadium (2)Cleveland, Ohio (2)29,751
1951December 23, 1951Los Angeles Rams (2)^24–17Cleveland Browns‡Los Angeles Memorial Coliseum (2)Los Angeles, California (2)57,522
1952December 28, 1952Detroit Lions (2)^17–7Cleveland Browns‡Cleveland Stadium (3)Cleveland, Ohio (3)50,934
1953December 27, 1953Detroit Lions (3)^17–16Cleveland Browns‡Briggs StadiumDetroit, Michigan (2)54,577
1954December 26, 1954Cleveland Browns (2)‡56–10Detroit Lions^Cleveland Stadium (4)Cleveland, Ohio (4)43,827
1955December 26, 1955Cleveland Browns (3)‡38–14Los Angeles Rams^Los Angeles Memorial Coliseum (3)Los Angeles, California (3)85,693
1956December 30, 1956New York Giants (4)‡47–7Chicago Bears^Yankee StadiumNew York City, New York (6)56,836
1957December 29, 1957Detroit Lions (4)^59–14Cleveland Browns‡Briggs Stadium (2)Detroit, Michigan (3)55,263
1958December 28, 1958Baltimore Colts^23–17New York Giants‡Yankee Stadium (2)New York City, New York (7)64,185
1959December 27, 1959Baltimore Colts (2)^31–16New York Giants‡Memorial StadiumBaltimore, Maryland57,545
1960December 26, 1960Philadelphia Eagles (3)‡17–13Green Bay Packers^Franklin FieldPhiladelphia, Pennsylvania (2)67,325
1961December 31, 1961Green Bay Packers (7)^37–0New York Giants‡City StadiumGreen Bay, Wisconsin39,029
1962December 30, 1962Green Bay Packers (8)^16–7New York Giants‡Yankee Stadium (3)New York City, New York (8)64,892
1963December 29, 1963Chicago Bears (8)^14–10New York Giants‡Wrigley Field (5)Chicago, Illinois (6)45,801
1964December 27, 1964Cleveland Browns (4)‡27–0Baltimore Colts^Cleveland Stadium (5)Cleveland, Ohio (5)79,544
1965January 2, 1966Green Bay Packers (9)^23–12Cleveland Browns‡Lambeau Field (2)Green Bay, Wisconsin (2)50,777
1966January 1, 1967Green Bay Packers (10)^34–27Dallas Cowboys‡Cotton BowlDallas, Texas74,152
1967December 31, 1967Green Bay Packers (11)^21–17Dallas Cowboys‡Lambeau Field (3)Green Bay, Wisconsin (3)50,861
1968December 29, 1968Baltimore Colts (3)^34–0Cleveland Browns‡Cleveland Stadium (6)Cleveland, Ohio (6)78,410
1969January 4, 1970Minnesota Vikings^27–7Cleveland Browns‡Metropolitan StadiumBloomington, Minnesota46,503

Total NFL championships won (1920–1969)

ClubWinnersRunners-upWinning years
Green Bay Packers1141929, 1930, 1931, 1936, 1939, 1944, 1961, 1962, 1965, 1966, 1967
Chicago Bears891921, 1932, 1933, 1940, 1941, 1943, 1946, 1963
New York Giants4131927, 1934, 1938, 1956
Detroit Lions421935, 1952, 1953, 1957
Cleveland Browns471950, 1954, 1955, 1964
Philadelphia Eagles311948, 1949, 1960
Baltimore Colts311958, 1959, 1968
Canton Bulldogs201922, 1923
Chicago Cardinals211925, 1947
Los Angeles Rams231945, 1951
Washington Redskins241937, 1942
Akron Pros101920
Cleveland Bulldogs101924
Providence Steam Roller101928
Minnesota Vikings101969
Frankford Yellow Jackets111926
Dallas Cowboys02N/A
Buffalo All-Americans01N/A
Pottsville Maroons01N/A

See also

Notes

Notes

Footnotes

  • (PDF). NFL.com. Archived from (PDF) on September 25, 2013.
  • (PDF). NFL.com. Archived from (PDF) on December 3, 2013.