Baylor University (BU) is a private Christian university in Waco, Texas. Chartered in 1845 by the last Congress of the Republic of Texas, it is the oldest continuously operating university in Texas and one of the first educational institutions west of the Mississippi River in the United States. Located on the banks of the Brazos River next to I-35, between the Dallas-Fort Worth Metroplex and Austin, the university's 1,000-acre campus is the largest Baptist university campus in the world. Baylor University's athletic teams, known as the Bears, participate in 19 intercollegiate sports. The university is a member of the Big 12 Conference in the NCAA Division I. It is affiliated with the Baptist General Convention of Texas.