What was notable about the First Battle of Bull Run?

The First Battle of Bull Run, fought on July 21, 1861, holds historical significance as the first major battle of the American Civil War. This engagement set the stage for the extensive conflict that would ensue over the following years, demonstrating the intensity and scale of the war. The outcome of this battle was a Confederate victory, which shocked many in the North who had anticipated a quick and easy conflict, highlighting the bloody and complex nature of the war ahead. The large number of participants and the chaotic retreat of Union forces underscored the reality of the war, marking a pivotal moment in the early stages of the conflict. The battle's importance lies not only in its immediate tactical consequences but also in its impact on public opinion and military strategy throughout the Civil War.