Why is the battle of the first bull run important?

Answer 1

It revealed that the North was not ready for combat, and would need months of training before they could launch a successful military operation.

Answer 2

The Battle of First Bull Run (also known as the Battle of Manassas) was important because it was the first major land battle of the American Civil War. It shattered the belief that the war would be short and easy, as both sides experienced significant casualties. It highlighted the need for better organization and training within the armies and set the stage for a long and bloody conflict.