The Big Ten Conference (stylized B1G, formerly the Western Conference and the Big Nine Conference) is the oldest Division I collegiate athletic conference in the United States. It is based in Rosemont, Illinois. For over eight decades this conference consisted of ten universities, and presently has 14 member and two affiliate institutions. They compete in the NCAA Division I; its football teams compete in the Football Bowl Subdivision (FBS), formerly known as Division I-A, the highest level of NCAA competition in that sport. The conference includes the flagship public university in each of 11 states stretching from New Jersey to Nebraska, as well as two additional public land-grant schools and a private university.