1968
The National Football League, at the time called the American Professional Football Association, was founded in 1920.
1955
1987
In 1920.
$80,000 a year
The Chicago Tigers of the American Professional Football Association folded the same year they were organized, 1920.
The Scottish Premier League started in 1998 when it separated from the Scottish Football League. The two clubs rejoined in 2013 to form the Scottish Professional Football League.
2001
this was in about 1962.
Pro football players can make from around 300,000-40,000,000 a year
professional football by a mile
1891