The United States District Court for the Middle District of Tennessee (in case citations, M.D. Tenn.) is the federal trial court for most of Middle Tennessee. Based at the Estes Kefauver Federal Building and United States Courthouse in Nashville, it was created in 1839 when Congress added a third district to the state. Tennessee—along with Kentucky, Ohio, and Michigan—is located within the area covered by United States Court of Appeals for the Sixth Circuit, and appeals are taken to that court (except for patent claims and claims against the U.S. government under the Tucker Act, which are appealed to the Federal Circuit).