John Bull locomotive operated for the first time in 1831 for the Camden and Amboy Railroad in New Jersey. Built in Great Britain, the train engine was used until 1885 when it was purchased by the Smithsonian Institute. On September 15, 1981, celebrating its 150 year anniversary, the John Bull became the oldest working locomotive when it traveled several miles on train tracks on its own power. Later in 1985 it became the oldest locomotive to travel by air when it took a plane ride to Dallas, Texas, to be part of an exhibit. Today it is on static display at the National Museum of American History in Washington, DC.