What was before the NFL?

Related questions

1. How much do NFL referees make?
2. Do NFL players have curfews?
3. Does the NFL own the AAF?
4. What is Tom Brady's salary?
5. Why do the Dallas Cowboys always wear white?
6. What's the difference between the NFL and CFL?
7. Who is the youngest QB in the NFL?
8. Do NFL footballs have stripes?
9. How much do CFL players make?
10. What is the average NFL pension?

Tags

1. #prior
2. #league
3. #playoff
4. #world
5. #determine
6. #first
7. #called
8. #super
9. #system
10. #ultimate
11. #rival
12. #agreed
13. #renamed
14. #later
15. #after
16. #champion
17. #began
18. #merger
19. #championship