National Football League history event
C1928
concept
A National Football League history event is a significant occurrence or milestone—such as a game, rule change, record, or organizational decision—that has contributed to shaping the evolution and legacy of the NFL over time.
Observed surface forms (2)
- American football history topic ×1
- National Football League history topic ×1
Instances (2)
- National Football League expansion and realignment via concept surface "National Football League history topic"
- NFL–AFL merger