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NFL is an American football abbreviation. "NFL" stands for "National Football League". National because the league is played across the nation; Football because the game played is referred to as "football" (It is known as "football" in America. Many countries refer to it a "soccer".); League because this national game is played with multiple teams in many places at different times, etc. (unapproved definition of "league").
originally there was only one football league in the us but then a new league was created which included new teams like the patriots and the broncos. the original league was called the national football league and the new league was called the American football league. later they were changed to conference instead of league. other wise there is no difference between AFC and NFC
Frank Tripucka of the Denver Broncos has the distinction of having thrown the first touchdown pass in the American Football League's history (to Al Carmichael on Sep. 9, 1960 at Boston).
You can find it at the National Football League website @ NFL.com.
National Indoor Football League ended in 2008.
National Indoor Football League was created in 2001.
Newman National Football League was created in 1972.
National Football League was created on 1920-08-20.
Fortescue National Football League was created in 1956.
The National Football League was founded in 1920 under the name American Professional Football Association. The name was changed to National Football League in 1922.
Through Week 16 of the 2011 National Football League season, Dez Bryant of the Dallas Cowboys has nine touchdown catches.
National Football League Players Association was created in 1956.