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The Pennsylvania Railroad Company was set up in 1846. Originally, it was supposed to run between Harrisburg and Pittsburgh. At first, it only had freight trains which carried goods and supplies. Then in 1848, it began running a passenger train. By 1856, the Pennsylvania Railroad went to Chicago, Illinois. After the Civil War, it went to Washington, D.C., St. Louis, Missouri, New York City, and other large cities.
1) What is the main idea of this passage?
2) Give one detail that supports the main idea.
1) The Pennsylvania Railroad Company was set up in 1846.
2) It first rain from Harrisburg to Pittsburgh. It only had freight trains at first. In 1848, it began running a passenger train. By 1856, the railroad went to Chicago, Illinois.