Linked from

The 15 pages that link to American football, each with the reason it gives.

• Association footballCompared with: Its forward passing and structured downs create a different form of play.

• Rugby unionCompared with: Its forward passing and possession resets distinguish it from union’s continuous play.

• Rugby footballCompared with: Forward passing and downs distinguish it from rugby’s continuous, backward-passing play.

• Rugby leagueCompared with: Its downs and permitted forward pass contrast with league's tackle count and passing rules.

• Australian rules footballCompared with: Its stoppages, forward passing, and yard-based field contrast with continuous oval-field play.

• QuarterbackNarrower topic: Quarterback duties are shaped by this sport’s downs, formations, and scoring rules.

• College footballNarrower topic: College football is the collegiate form of this broader sport.

• Jim ThorpeNarrower topic: Thorpe became one of professional football's early stars and helped establish the sport's credibility.

• Walter CampNarrower topic: Camp’s revisions helped turn this sport into a game distinct from rugby.

• Canadian footballCompared with: It shares the closest family resemblance while differing in core rules.

• Flag footballNarrower topic: Flag football adapts this sport while replacing tackling with flag removal.

• Ultimate FrisbeeCompared with: Its end-zone scoring resembles ultimate’s, while its play uses contact and running with the ball.

• Culture of the United StatesBroader topic: Its leagues, rituals, and broadcasts make it a prominent shared spectacle.

• Gridiron footballBroader topic: It is the most widely followed member of the gridiron family.

• Red GrangeNarrower topic: Grange’s celebrity helped professional football compete for attention in a sport long dominated by college teams.