According to Pro Football Reference, through the 2007 season the franchise that has lost the most games is the Arizona Cardinals who have a overall record of 464-667-39. The Cardinals are an original franchise in the NFL and have been playing since 1920. They started off in Chicago.
The Skydome has been host to Major League Baseball games and National Football League games.
32 teams: http://en.wikipedia.org/wiki/Nfl#Current_NFL_teams
There are many different rules for playing football as a kid. While some of them are the same as in the National Football League, most are revised for younger players.
That has happened twice in National Hockey League history and once in Major League Baseball history but never in National Basketball Association history.
The AFL was founded in 1959 and the first season was in 1960.
No, Both American and National league baseball games are 9 innings long
The American Football League first played games in 1960.
During the 2011 National Football League season, the Dallas Cowboys won eight games and lost eight.
Games are 3+ hours Seasons span 21 weeks, not including pre-season
First of all, you are confusing the terms national league and American league used in baseball with football. Replace the word league with football. NFL has the National Football Conference and American Football Conference. There really is no difference, the difference is very similar to the differences between the American League and National League in baseball. Both Conferences are at the same level of play, play for the world championship with one team represting each (league in baseball, conference in football) in the final round of the playoffs, and in both baseball and football, each team plays the majority of games in their own (league in baseball, conference in football), but still plays a few of their games against teams from the other league or conference. These conferences were created after the NFL merged with a competing top-level league in 1970, the AFL (American Football League). All teams in the NFC are either expansion teams created after the merger, or were in the NFL before the merger. In the AFC, three teams that were in the NFL moved to the AFC the year of the merger so both conferences would have the same number of teams. Other than those three teams, all AFC teams were in the AFL or are expansion teams created after the merger.
Each NFL team plays 16 games in the regular season. The National Football League was founded on August 20, 1920 and has 32 teams.
During the 2011 National Football League season, the Dallas Cowboys won eight games and lost eight.