What are facts about about the Battle of Bull Run?

Answer 1

As it was the first battle of the war, the supply of uniforms had not been formalised, and some of the Confederates were wearing blue.

This caused a Union battery to hold their fire until too late, and contributed to the Northern defeat.

Answer 2

Early on the fighting went in the unions favor. Some confederate soldiers began to turn back, but one general from Virginia told his men to hold there place that person was Thomas "StoneWall" Jackson- StoneWall was his nickname for staying in place. As more confederates arrived the tide turned in there favor. The union soldiers retreated.