Howard University is a private, 4-year school located in Washington, DC, adjacent to McMillan Reservoir. The school was founded in 1867 as the Howard Normal and Theological School for the Education of Teachers and Preachers, named in honor of Civil War General Oliver Otis Howard. The school is designated as a Historically Black University (HBCU). The 250 acre campus, set in the Northwest Quadrant of the city, features several historic landmarks including Andrew Rankin Memorial Chapel and Frederick Douglas Memorial Hall. The campus contains a large central quad, as well as tree-lined pathways and several small green spaces (unique for an urban location). Notable alumni include choreographer Debbie Allen, entrepreneur Sean Combs and former Supreme Court Justice Thurgood Marshall.