Answer:
Step-by-step explanation:
Plessy v. Ferguson was a landmark Supreme Court decision. In 1892 Homer Plessy violated a Louisiana law by sitting in a whites only train car. He claimed it was unconstitutional, but lost. He appealed to the Supreme Court. He also lost there.
It preserved racial segregation by declaring "separate but equal" constitutional. Throughout the country, separate buses, train cars, restaurants, water fountains, hotels, and more continued to exist. In addition, racism against African Americans was upheld.