How old is the NFL?

Related questions

1. What US teams played in the CFL?
2. Why does Canada not have a NFL team?
3. Is the CFL field bigger than NFL?
4. Does Mexico have a NFL team?
5. Are college footballs bigger than NFL balls?
6. Who invented football?
7. How long do NFL practices last?
8. Who is the youngest QB in the NFL?
9. How much do NFL referees make?
10. What is the lowest salary in the NFL?

Tags

1. #season
2. #renaming
3. #professional
4. #association
5. #before
6. #football
7. #itself
8. #american
9. #league
10. #formed
11. #national