The two Battles of Bull Run occurred near Manassas Junction, Va., approximately 30 miles from Washington, D.C. The first battle was the first major conflict of the Civil War, and it ended with the Union forces in full retreat. The second battle was another Confederate victory but was less decisive.
During and after the Civil War, the Union and Confederacy adopted different naming methods. Northern historians named battles after rivers, streams and other geographical features. Southern historians named actions after nearby towns or settlements, resulting in the alternate name for these battles: First and Second Manassas. Since the Union ultimately prevailed, its nomenclature is the one that is most commonly used.