What was the primary outcome of the Plessy v. Ferguson case?

The primary outcome of the Plessy v. Ferguson case was that it upheld the constitutionality of racial segregation under the "separate but equal" doctrine. Decided in 1896, the Supreme Court ruling sanctioned laws that enforced racial segregation in public facilities, asserting that if the separate facilities for African Americans and whites were equal, segregation did not violate the Equal Protection Clause of the Fourteenth Amendment. This ruling provided a legal foundation for further segregationist policies and practices across the United States, solidifying a framework of institutionalized racial discrimination that would persist for decades, until it was eventually overturned by later rulings such as Brown v. Board of Education in 1954.