Answer:
The colonists fired first, they began throwing rocks and understandably the British fired back but with guns. That's how it happened I may be wrong but that's how I remember it.
They were laws in the early history of the American south which legalized the segregation between blacks and whites.
Confederate Casualties at First Bull Run (approximate) Beauregard and Johnston's combined force of 30,800 had 390 killed, 1,600 wounded, and about a dozen missing, a total of approximately 2,000 or about 6.5 percent. Both sides suffered about the same number of killed and wounded.