Free Substitution, Walter Camp's B-Day & Football Legends

Important events in sport for the 7th of April. See what famous, scandalous and notable sporting events happened on April 7. — www.onthisday.com

April 7 marks pivotal NFL rule changes and honors football's foundational figures. Relive the anniversary of free substitution and mandatory equipment, plus celebrate the birthday of Walter Camp, the game's father. Remember legends like Garbisch, Dorsett's Heisman glory, and Rivera's Texas Tech dominance.

Celebrate April 7 in football history! From game-changing free substitution rules and mandatory player equipment to honoring the "Father of American Football," Walter Camp, on his birthday. This date also spotlights iconic players who left indelible marks on the sport, showcasing its rich and evolving legacy.