Pennsylvania was a state in the United States in the 18th, 19th, 20th and 21st centuries.

On September 21, 1939, at the New York World's Fair, Emmett Brown explained the presence of his Jules Verne train by stating that it was going to be part of the railroad pageant with the Pennsylvania S1. After Doc Brown stated this, his son Verne thought that they were going to visit Pennsylvania. However, Doc explained that it was a famous train, and then took his family to see it.


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