The Pennsylvania State University (commonly referred to as Penn State or PSU) is a public, state-related research university with campuses and facilities throughout Pennsylvania. Founded in 1855, the university has a stated threefold mission of teaching, research, and public service. Its instructional mission includes undergraduate, graduate, professional and continuing education offered through resident instruction and online delivery. Its University Park campus, the flagship campus, lies within the Borough of State College and College Township. It has two law schools, Penn State Law, on the school's University Park campus, and Dickinson Law, located in Carlisle. The College of Medicine is located in Hershey. Penn State has another 19 commonwealth campuses and 5 special-mission campuses located across the state.