Manassas, a district of Prince William county, Virginia, and a town of the district, about 30 m. W.S.W. of Washington, D.C. Pop. (1900) of the district, 3006; of the town, 817. The village of Manassas (in the town), known also as Manassas Junction, is served by the Chesapeake & Ohio and the Southern railways. North of the junction is Bull Run, a small stream which empties into the Occoquan, an arm of the Potomac. In this neighbourhood two important battles of the American Civil War, the first and second battles of Bull Run, were fought on the 21st of July 1861 and on the 29th-30th of August 1862 respectively; by Southern historians these battles are called the battles of Manassas. At Manassas is the Manassas Industrial School for Coloured Youth (non-sectarian; privately supported), which was founded in 1892 and opened in 1894; in1908-1909it had nine teachers (all negroes) and 121 pupils, all in elementary grades.