The University of Southern Maine (USM) is a multi-campus public urban comprehensive university and part of the University of Maine System. USM's three primary campuses are located in Portland, Gorham, and Lewiston. Originally founded as two separate universities (Gorham Normal School, University of Maine at Portland), the two state universities were combined in 1970 to help streamline the public university system in Maine and eventually expanded by adding the Lewiston campus in 1988. The Portland Campus is home to the Edmund Muskie School of Public Service along with the Bio Sciences Research Institute and the University of Maine School of Law, the Osher Lifelong Learning Institute and the Osher Map Library. The Gorham campus, much more residential, is home to the College of Education and the School of Music. At Lewiston-Auburn, students experience a small, intimate campus, with a focus on interdisciplinary learning. Each campus maintains its own "atmosphere", and professionals from all campuses provide a world-class experience at this regional university.