Question: The case of Loving v. Virginia in 1967 was a landmark civil rights decision of the US Supreme Court which invalidated what prohibition that was historically taboo in the United States and outlawed in South Africa?
Sentence (from "Rodríguez v. Popular Democratic Party"): The Supreme Court of Puerto Rico held that such a procedure did not violate the United States Constitution, and the US Supreme Court upheld the decision of the Supreme Court of Puerto Rico.
Relevant evidence: No