The university was founded in 1817 in Detroit as the Catholepistemiad, or University of Michigania, about 20 years before the Michigan Territory officially became a state.The university 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 has physically expanded to include more than 500 major buildings with a combined area of more than 29 million square feet (664 acres or 2.69 km²), and transformed its academic program from a strictly classical curriculum to one that includes science and research. During the 20th century and early 2000s, UM was the site of much student activism and was a focal point in the controversy over affirmative action within higher education admissions.