was the first african american to be appointed to the u.s. supreme court.
Who was the first African-American justice on the US Supreme Court? President Lydon B. Johnson appoint Thurgood Marshall to be the first African-American US Supreme Court justice in 1967. Marshall retired from the Court just before the beginniâ¦ng of the 1991 Term and was succeeded by the second African-American justice, Clarence Thomas.