Please answer the questions below in a detailed couple of sentences.. 19. What major piece of legislation prohibits employment and now housing

Please answer the questions below in a detailed couple of sentences..

19. What major piece of legislation prohibits employment and now housing discrimination?

20. What are the protective groups that the government and employers can't discriminate against?

21. After slavery was abolished, how did the courts interpret the equal protection clause, explain Plessy vs. Ferguson in your answer?

22. What did Brown vs. Board of Education in 1954 call for in terms of equal protection?