On February 1, 1865, John S. Rock became the first African-American to achieve this.
- Serve as mayor of Washington D.C.
- Elected to Congress
- Attorney to practice before the U.S. Supreme Court
- Physician admitted to the American Medical Association
On February 1, 1865, John S. Rock became the first African-American to achieve this.
Attorney to practice before the U.S. Supreme Court seven years after the Court’s Dred Scott decision.