Why did 9/11 happen and how did it go down in the end?

As a result of the work of the house un-american activities committee, hundreds of people were

How did the supreme court decision in the slaughterhouse cause an affect american business

At the time of the brown v. board of education decision,schools were segregated everywhere in the country.several states had laws requiring segregated schools.schools in nearly every state has been desegregated.segregation was common in the north, but not in the south.