Georgetown University is a private Jesuit research university in Washington, D.C., United States. Founded by Bishop John Carroll in 1789, it is the oldest Catholic institution of higher education in the United States, the oldest university in Washington, D.C., and the nation's first federally chartered university. The university has eleven undergraduate and graduate schools. Its main campus, located in the Georgetown historic neighborhood, is on a hill above the Potomac River and identifiable by Healy Hall, a National Historic Landmark. It is classified among "R1: Doctoral Universities – Very high research activity." The university offers degree programs in forty-eight disciplines, enrolling an average of 7,500 undergraduate and 10,000 graduate students from more than 135 countries; it is the second largest Catholic university in terms of enrollment in North America.