The University of Southern Maine (USM) is a multi-campus public comprehensive university and part of the University of Maine System. USM's three primary campuses are located in Portland, Gorham and Lewiston in the U.S. state of Maine. Many courses and degree programs are also offered online. 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, the University of Maine School of Law, the Osher Lifelong Learning Institute and the Osher Map Library, and the USM School of Business.