Napoleons invasion of this country in 1812 les to the destruction of his invadeing army and to his eventual defeat. type the number of its loctaion

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