The University of Michigan is a public research university in Ann Arbor, Michigan. It is the state's oldest university and the flagship campus of the University of Michigan system. The University of Michigan was founded in 1817 in Detroit, as the Catholepistemiad, or University of Michigania, 20 years before the territory became a state. The school moved to Ann Arbor in 1837 onto 40 acres (16 ha) of what is now known as Central Campus. Since its establishment in Ann Arbor, the university campus has expanded to include more than 584 major buildings with a combined area of more than 34 million gross square feet (781 acres or 3.16 km²), and has two satellite campuses located in Flint and Dearborn. The University of Michigan is a founding member of the Association of American Universities.