Iowa Hawkeyes football – Wikipedia

Football was first played as a club sport at Iowa in 1872, with intramural games against other colleges played as early as 1882, but it was not until 1889 that the University of Iowa first officially recognized a varsity football team. Beginning in 1892, Iowa played for six seasons as a member of the Western Interstate University Football Association against three other Midwestern state universities.

https://en.wikipedia.org/wiki/Iowa_Hawkeyes_football