What is the fundamental idea behind the Fourteenth Amendment to the Constitution, which is mentioned in Brown v. Board of Education ?

The Fourteenth Amendment established citizenship for people born or naturalized in the United States and guarantees equal protection under the law. In Brown v. Board of Education, the Court relied on that equal-protection principle to rule against school segregation. The choice about making slavery illegal refers to the Thirteenth Amendment, while voting rights are addressed by the Fifteenth Amendment.

AI-written and checked against the verified answer.