Was Thurgood Marshall ever a judge outside of the supreme court?
No! But he was a great justice for the liberal cause.....
No. Thurgood Marshall was the first African-American to serve on the US Supreme Court. President Johnson nominated him as an Associate Justice in 1967 and he remained on the Court until his retirement in 1991. Thurgood Marshall was succeeded by incumbent Associate Justice Clarence Thomas. John Marshall was Chief Justice of the Supreme Court from 1801 until his death in 1835. He is widely considered the most influential Chief Justice in history.
Did Thurgood Marshall become the first African American to be appointed to the US Supreme Court in 1964?
Yes, if you mean Thurgood Marshall. President Johnson appointed Justice Thurgood Marshall to the US Supreme Court in 1967. He served until his retirement in 1993, when he was succeeded by Justice Clarence Thomas, the second African-American on the Court. Justice Thomas is currently an incumbent on the Court.