Since the Judiciary Act of 1789, Supreme Court justices had “ridden circuit,” serving as trial judges for the circuit courts. In 1891, Congress creates the U.S. Courts of Appeals, but allows the circuit courts to continue for twenty additional years. In 1911, the circuit courts are abolished and their jurisdictions are transferred to the district courts. In the early twenty-first century, there are ninety-four U.S. judicial districts organized into twelve regional circuits, each one having a U.S. Court of Appeals.