The University of Michigan, Ann Arbor (U of M, U-M, UM or simply Michigan) is a coeducational public research university in the state of Michigan. The University of Michigan's sports teams are called the Wolverines. They participate in the NCAA's Football Bowl Subdivision (formally Division I-A) and in the Big Ten Conference. The UM football program ranks first in NCAA history in both total wins (860) and winning percentage (.745). The Wolverines have won a record 42 Big Ten championships, including five in the past decade. The program has eleven national championships, most recently in 1997.