The Michigan Wolverines football program represents the University of Michigan in college football at the NCAA Division I Football Bowl Subdivision (formerly Division I-A) level. Michigan has the most all-time wins and the highest winning percentage in college football history. The team is known for its distinctive winged helmet, its fight song, its record-breaking attendance figures at Michigan Stadium, and its many rivalries, particularly its annual season-ending game against Ohio State, once voted as ESPN's best sports rivalry. Michigan began competing in intercollegiate football in 1879. The Wolverines joined the Big Ten Conference at its inception in 1896, when the conference was commonly known as the Western Conference, and have been members since with the exception of a hiatus from 1907 to 1916. Michigan has won or shared 42 league titles, more than any other football program in any conference. Since the inception of the AP Poll in 1936, Michigan has finished in the top 10 a record 37 times. The Wolverines claim 11 national championships, most recently that of the 1997 squad voted atop the final AP Poll.