1905 college football season
The 1905 college football season had the Chicago Maroons retroactively named as national champion by the Billingsley Report, the Helms Athletic Foundation, the National Championship Foundation, and the Houlgate System, while Yale was named champion by Parke H. Davis and Caspar Whitney. Chicago finished the season 11-0, while Yale finished 10-0. The Official NCAA Division I Football Records Book listed both Chicago and Yale as having been selected national champions.
Source: Wikipedia DBpedia