Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; which word or phrase indicates that incorporation was not yet in practice following the ratification of the bill of rights? congress establishment of religion prohibiting free exercise

Which effect did the united states supreme court's decision in plessy v. ferguson have? 1. ending segregation in all public schools in america 2. protecting voting rights for african americans by eliminating literacy tests 3. upholding the rights of all citizens to be treated equally by the government 4. authorizing the system that kept black and white people separated