(A) Trick Question-Only has one name
(B) The battle moved halfway through due to a tornado
(C) ** Each set of forces created a different name
EXPLANATIONS BELOW
Concept note-1: -Southerners called it the Battle of Manassas, after the closest town. Northerners called it Bull Run, after a stream running through the battlefield.
Concept note-2: -The First Battle of Bull Run, also known as the Battle of Manassas, marked the first major land battle of the American Civil War. On July 21, 1861, Union and Confederate armies clashed near Manassas Junction, Virginia.
Concept note-3: -Bull Run was the first full-scale battle of the Civil War. The fierce fight there forced both the North and South to face the sobering reality that the war would be long and bloody.
Concept note-4: -On July 21, 1861, in the first major land battle of the Civil War, a large Union force under General Irvin McDowell is routed by a Confederate army under General Pierre G.T. Beauregard.