What case allowed for separate but equal to be applied to all public places and paved the way for segregation in public schools as law now sanctioned it?

The case that allowed for separate but equal to be applied to all public places, including public schools, was Plessy v. Ferguson. This landmark Supreme Court case was decided in 1896 and upheld the constitutionality of racial segregation under the doctrine of “separate but equal.” This decision effectively legalized segregation in public facilities and institutions, including public schools.