The University of Massachusetts is the five-campus public university system and the only public research system in the Commonwealth of Massachusetts. The university system includes five campuses (Amherst, Boston, Dartmouth, Lowell, and a medical school in Worcester), a satellite campus in Springfield and also 25 campuses throughout California and Washington with the University of Massachusetts Global. The system administration is in Boston and Shrewsbury and is accredited by the New England Association of Schools and Colleges and across its campuses enrolls 75,065 students. Campuses The University of Massachusetts Amherst is the largest school in the UMass system. It was also the first one established, dating back to 1863, when it was founded as the Massachusetts Agricultural College. The University of Massachusetts Chan Medical School was founded in 1962, and is located in Worcester. The University of Massachusetts Boston, originally established in 1964, was merged with Boston State College in 1982. In 1991, the University of Lowell and Southeastern Massachusetts University joined the system as the University of Massachusetts Lowell and University of Massachusetts Dartmouth, respectively. University of Massachusetts Amherst Amherst is the flagship and the largest of the UMass campuses, as well as the first established. Like many colleges and universities, the Massachusetts Agricultural College (as it was originally called) in Amherst was founded as a land-grant college in 1863, receiving initial start-up funding as part of the Morrill Land-Grant Colleges Act. It became "Massachusetts State College" in 1931, and "University of Massachusetts" in 1947. The library system is the largest state-supported library system in New England with over 6.1 million items. The campus has many architecturally distinctive buildings commissioned by the Commonwealth and designed by world-renowned architects. Massachusetts offers a variety of academic and co-curricular options. Ninety-two percent of the more than 1,300 full-time faculty members hold the highest degree in their fields. The average SAT score for the 2018 entering class is 1296, and the average GPA is 3.90 on a 4.0 scale. The campus has 21,969 undergraduates and offers 109 bachelor's degree programs. There is a student-to-faculty ratio of 18:1 and 81% of classes have fewer than 40 students. Massachusetts hosts Commonwealth Honors College (CHC) where admission is more competitive with an average SAT score of 1411. CHC offers personalized advising, smaller class sizes taught by professors, and a six building Honors Residential Community, which opened in fall 2013. Students participate in 240 campus organizations, 21 NCAA