What were these people called???

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I have to write a report on prejudice, and i'm trying to remember what the nickname for this group of people was called. In the mid 1900s there was a grop of black teens. They were going to be going to a white-only school as an experiment to see how the other people would act. When they got there, there were mobs of people throwing things, saying bad things, and it was just so mean. What did they call that group of teens? Thanks for the help.