Which principle was cited in the ruling of Plessy v. Ferguson?

The principle cited in the ruling of Plessy v. Ferguson is "Separate but Equal." This landmark case, decided by the U.S. Supreme Court in 1896, established the legal basis for racial segregation in public facilities, affirming that states could provide separate facilities for black and white individuals as long as those facilities were deemed to be equal. The ruling effectively upheld the constitutionality of racial segregation laws, stating that enforcing racial segregation did not violate the Fourteenth Amendment’s Equal Protection Clause as long as the segregated facilities were equal in quality.

The decision had far-reaching consequences, entrenching racial segregation in various aspects of public life, including education, transportation, and more, lasting until it was eventually overturned by the Supreme Court in Brown v. Board of Education in 1954. This principle underscored the systemic nature of racial discrimination in the United States, laying the foundation for future civil rights struggles. The other concepts listed, while important in the context of civil rights and constitutional law, do not reflect the specific ruling established in Plessy v. Ferguson.