[DOC] [TLE] History of the National Football League championship - Wikipedia [PAR] Throughout its history, the National Football League (NFL) and other rival 
American football .... These games matched the second-place teams from the two 
conferences; the CBS television network advertised .... Three of the four league 
champions who lost one of the first four Super Bowls would eventually win at 
least one. [DOC] [TLE] Philadelphia Eagles - Wikipedia [PAR] The Philadelphia Eagles are a professional football franchise based in 
Philadelphia, Pennsylvania. They compete in the National Football League (NFL) 
as a member club of .... The goalposts stood along the first base line and in left 
field. ... However, the Eagles lost to the Oakland Raiders in Super Bowl XV in 
1981. [DOC] [TLE] American Football League - Wikipedia [PAR] The American Football League (AFL) was a major professional American football 
league that ... The league first gained attention by signing 75% of the NFL's first-
round draft choices in 1960, ..... The second AFL-NFL Championship (Super 
Bowl II) yielded a similar result. ...... "Can Hornets match greatest all-time upsets?
". [DOC] [TLE] National Football League Kickoff game - Wikipedia [PAR] The National Football League Kickoff game, along with related festivities, marks 
the official start of the National Football League (NFL) regular season. A single 
game is held, preceded by a concert and other ceremonies. This first game of the 
season is usually scheduled for the Thursday following ... Defending Super Bowl 
champions are 112 in the Kickoff Game. [DOC] [TLE] Super Bowl Winners and Results - Super Bowl History - National ... [PAR] Find out each Super Bowl winning team throughout NFL pro football history. ... II, 
Jan. 14, 1968, Orange Bowl (Miami), Green Bay 33, Oakland 14. III, Jan. 12, 1969
, Orange ... 4, 2007, Dolphin Stadium (Miami), Indianapolis 29, Chicago 17. [DOC] [TLE] Super Bowl | American football | Britannica.com [PAR] 2-8-2016 ... Super Bowl, in U.S. professional gridiron football, the championship 
game of the ... game grew out of the merger of the NFL and rival American 
Football League (AFL) in 1966. The agreement called for an end-of-season 
championship game, and, ... The name Super Bowl first appeared in 1969, as 
did the use of... [DOC] [TLE] 2016 Super Bowl 50 - Official Site of the National Football League ... [PAR] 2/1: NFL Experience ... How was the scene on the field when the Broncos 
wrapped up a Super Bowl victory? ... Peyton Manning and the Denver Broncos 
are Super Bowl 50 champions after ... 'Sound FX': Getting ready for Super Bowl 
50 ... leading to the first touchdown of Super Bowl 50 with exclusive, never-before
-seen... [DOC] [TLE] Who Is Playing In Super Bowl 50? See Which Teams Made It To The ... [PAR] Jan 24, 2016 ... After two incredible conference championship games between four of ... It has 
been one heck of a season for the National Football League, and it has all come 
down to this. ... have had this year, Super Bowl 50 is sure to be quite the match 
up. ... Clearly both of these teams deserved their Super Bowl bids! [DOC] [TLE] Why haven't the Philadelphia Eagles ever won a Super Bowl? - Quora [PAR] Let me add a bit of historical context. The NFL has existed since 1920, with the 
first official ... The NFL has existed since 1920, with the first official championship 
game ... The 16 teams of that league, which was the dominant football league in 
the US, ... What will it take for the Philadelphia Eagles to go to the Super Bowl? [DOC] [TLE] The Patriots And Seahawks Are The Best. This Could Be The Worst ... [PAR] Jan 30, 2015 ... People pass Roman numerals for Super Bowl XLIX on Wednesday in ... 
Furthermore, both teams have been at the top of the league for ... But it's not only 
that the Seahawks and Patriots are strong teams: They're just about evenly 
matched.

Question: The first 4 Super Bowls matched up the champions of these 2 leagues
Answer: AFL & NFL