USC
The Arena Football League was founded in 1987. There was no champion in 1976.
Oklahoma
yes
Minnesota
vasco da gama
The Champ by Nelly
Alabama won the championship in 2009
Football Champion was created in 1973.
because no other country can be bothered to play American football Because no other country can compete with NFL teams in American Football. The same reason the World Series champion is called the "World Champion" (though, in the case of MLB, there is one team, the Toronto Blue Jays, outside of the US). Moreover, the title "National Champion" is used by the champion of COLLEGE football, and is thus unavailable for the champion of professional football.
1986 Joe Paterno College football NCAA champion coach
the person champion him again and till he or she wins.