Source-backed summary
On July 21, 1861, two armies clashed for the first time on the fields overlooking Bull Run. Heavy fighting swept away any notion of a quick war.
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About Manassas National Battlefield Park
On July 21, 1861, two armies clashed for the first time on the fields overlooking Bull Run. Heavy fighting swept away any notion of a quick war. In August 1862, Union and Confederate armies converged for a second time on the plains of Manassas. The Confederates won a solid victory bringing them to the height of their power.