What doctrine was applied in the case of Brown v. Board of Education?

The doctrine applied in the case of Brown v. Board of Education is primarily the principle of equal protection under the law, as established in the Fourteenth Amendment of the U.S. Constitution. The Supreme Court's decision in this landmark case addressed the legality of racial segregation in public schools. The Court determined that "separate but equal" educational facilities for racial minorities and whites were inherently unequal, leading to the conclusion that segregation violated the equal protection clause.

This doctrine emphasizes the fundamental idea that all individuals are entitled to equal protection under the law, which was pivotal in dismantling institutionalized racism in the education system. By ruling that racial segregation in public schools was unconstitutional, the Court invoked the equal protection clause as a means to promote social justice and equity, thus reshaping the legal landscape regarding civil rights in America.

The other options are less relevant to the specific doctrine applied in Brown v. Board of Education. While the idea of separation of races played a role in the context of the case, it was ultimately ruled unconstitutional based on equal protection. Originalism pertains to interpreting the Constitution based on its original meaning, which was not the focus of the case. Judicial activism might describe the Court's proactive stance in changing existing laws to promote equality, but the