The University of Florida (commonly referred to as Florida or UF) is an American public land-grant, sea-grant, and space-grant research university on a 2,000-acre (8.1 km2) campus in Gainesville, Florida. It is a senior member of the State University System of Florida that traces its origins to 1853, and has operated continuously on its Gainesville campus since September 1906. The University of Florida is one of sixty-two elected member institutions of the Association of American Universities (AAU), the association of preeminent North American research universities, and the only AAU member university in Florida. The University is classified as a Research University with Very High Research by the Carnegie Foundation for the Advancement of Teaching. The university is accredited by the Southern Association of Colleges and Schools (SACS). It is the third largest Florida university by student population, and is the eighth largest single-campus university in the United States with 54,854 students enrolled for the fall 2016 semester. The University of Florida is home to sixteen academic colleges and more than 150 research centers and institutes. It offers multiple graduate professional programs—including business administration, engineering, law, dentistry, medicine, and veterinary medicine—on one contiguous campus, and administers 123 master's degree programs and seventy-six doctoral degree programs in eighty-seven schools and departments. The university's seal is also the seal of the state of Florida which is on the state flag. The University of Florida's intercollegiate sports teams, commonly known by their "Florida Gators" nickname, compete in National Collegiate Athletic Association (NCAA) Division I and the Southeastern Conference (SEC). In their 111-year history, the university's varsity sports teams have won 40 national team championships, 35 of which are NCAA titles, and Florida athletes have won 275 individual national championships. In addition, University of Florida students and alumni have won 126 Olympic medals including 60 gold medals.