Was Frohwerk vs US ever overturned?
No. Freedom of speech does not permit attempts to cause disloyalty, mutiny and refusal of duty in the military and naval forces of the United States. It was cited as a precedent in Abrams vs United States, Debs vs United States, Schenck vs United States and Baer vs United States.
The landmark civil rights case of Brown v Board of Education rendered invalid the decision in which Supreme Court case?
Brown vs. Board overturned the Supreme Court decision of Plessy vs. Ferguson. That decision ruled that having separate facilities for African-Americans and white people was constitutional so long as these facilities remained equal. Brown vs. Board proved that these separate conditions were not kept equal, and Plessy vs. Ferguson was overturned.
These are not in any particular order, but I would say; Plessy vs. Ferguson - "separate but equal" equal protection Brown vs. Board of Education (which overturned Plessy vs. Ferguson) - equal protection Mapp vs Ohio - exclusionary rule, search and seizure, due process of the law Gideon vs. Wainwright - right to council, due process of the law Miranda vs. Arizona - "Miranda rights", self incrimination, due process of the law Roe vs. Wade…
Here are just a few landmark cases involving civil rights: Dred Scott v. Sandford, (1857) Blacks not citizens Plessy v. Ferguson, (1896) allowed 'separate but equal' facilities, including education Brown vs. Board of Education, (1954) overturned Plessy vs. Ferguson, ordered school integration Gideon Vs. Wainwright, (1963) required that attorneys be provided for indigent defendants
Brown vs. Board of Education was a very important and crucial court case for civil rights. It overturned the Plessy vs. Fuegerson case which stated separate but equal was acceptable. Basically it was giving segregation a further thumbs up. Brown vs. Board of Education overturned that and stated that the concept of "separate but equal" was unconstitutional. It was a dignified choice as well seeing as the separate part was on spot but the equal…