Plessy v. Ferguson: Plessy v. Ferguson was a case in which Homer Plessy, a man who was 1/8th black, decided to fight against segregation by sitting in on a “whites-only” railcar. He was arrested, and then brought to court to plead his case. The case was taken to the Supreme Court, where they ruled against Plessy. The Supreme Court argued that segregation was not a form of slavery, therefore it was lawful.