What are the differences between the National League Conference and the American League Conference in American football?
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.