Which accurately describes what Plessy v. Ferguson and Brown v. Board of Education had in common?

Both cases concerned the Fourteenth Amendment’s Equal Protection Clause. In Plessy v. Ferguson, the Supreme Court allowed racial segregation under the “separate but equal” doctrine; in Brown v. Board of Education, it ruled that segregation in public schools violated equal protection. So both involved interpreting the Fourteenth Amendment, even though they reached different conclusions.

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