The 1975–1976 American Freedom Train visited 138 cities during the U.S. Bicentennial.
The train toured the 48 contiguous states from 1975 through 1976, bringing a mobile exhibition of American history to communities across the country. Its displays included documents, vehicles, sporting artifacts, cultural objects and a rock from the Moon.
By the time the tour ended, the train had traveled 25,833 miles over 21 months. More than seven million people visited the exhibits, while many others watched it pass along the tracks.
The number 138 refers to the cities where the train stopped, not the number of states or the total number of towns along its route. The Freedom Train was one of the major nationwide celebrations of the 1976 Bicentennial, making it a useful historical comparison for America250.