Is the question multiple choice?
After WWI and during the Great Depression the US tried to be an Isolationist nation. They put out tariffs so people would buy US (forgetting that the rest of the world was still devastated by WWI (economies included)).
Answer: I'm not sure if there are other choices but Plessy v. Ferg began Apr 13, 1896, and ended May 18, 1896, and Brown v. Board of education started in 1951 and ended May 17, 1954.
Explanation:
1. Plessy v. Ferg.
2. Brown v. Board of Education.
