Final answer:
Plessy v. Ferguson upheld segregation under "separate but equal" doctrine despite a challenge based on the Fourteenth Amendment.
Explanation:
Plessy v. Ferguson was a landmark Supreme Court case in 1896 that upheld the constitutionality of racial segregation under the notion of "separate but equal". The case revolved around Homer Plessy, a light-skinned African American who challenged a Louisiana law mandating racial segregation on trains. Despite his argument that this violated the Fourteenth Amendment's equal protection clause, the Court's 8-1 decision affirmed segregation as lawful as long as facilities were provided on an equal basis.
Learn more about Plessy v. Ferguson and racial segregation here:
https://brainly.com/question/9304823
