(A) ** Battle of First Manassas
(B) Battle of Fort Sumter
(C) Bleeding Kansas
(D) Battle at Junction, Virginia
EXPLANATIONS BELOW
Concept note-1: -First Battle of Bull Run, also called First Battle of Manassas, Battle of First Manassas, or Manassas Junction, (July 21, 1861), in the American Civil War, the first of two engagements fought at a small stream named Bull Run, near Manassas in northern Virginia.
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: -The first land battle of the Civil War was fought on July 21, 1861, just 30 miles from Washington-close enough for U.S. senators to witness the battle in person. 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-4: -Federal forces under General Irvin McDowell attempted to flank Confederate positions by crossing Bull Run but were turned back. The end result of the battle was a Confederate victory and Federal forces retreated to the defenses of Washington, DC.