Complex sentence: The law was the most famous ban on miscegenation (anti-miscegenation law) in the United States, and was overturned by the United States Supreme Court in 1967, in "Loving v. Virginia".
Split into simpler sentences: The law was the most famous ban on miscegenation (anti-miscegenation law) in the United States. It was overturned by the United States Supreme Court in 1967, in "Loving v. Virginia".