History of American football - Wikipedia
History of the USFL: What it is, how it started, and its demise
Four AZ artists featured in 'Origins: An NFL Collection' merchandise
NFL's 100 Greatest Plays: The final five unveiled
HISTORY LESSON HISTORY OF THE WORLD FOOTBALL LEAGUE
NFL's 100 best teams of all time: Who's greatest squad in history?
Markings on 'Gridiron' Evolve Over Time
There was a time NFL outgrew Canton; not anymore
Super Bowl history: How the NFL's first champion was declared
The Origins of Southern College Football
NFL International Series: History of NFL Games Outside America
What Are the Longest NFL Rivalries in League History?