In response to the brown decision and to the general growth of the civil rights movement during the 1950s, southern states:

The correct answer is that they flew the Confederate flag over state capitol buildings. This was sort of a power play to make the people know that they weren't wanted there and that the south belongs to those who believe in confederate heritage. Basically, they were a bunch of racists but they weren't allowed to do anything so they resorted to this kind of things. They were often violent as well.