An informative look at the Keystone State, people, history, and culture Nicknamed the Keystone State, Pennsylvania has a long, rich history, that has been a major force in shaping America through the centuries. It is one of the 13 original United States, and two famous locations in the state--Valley Forge and Gettysburg--were key to the Revolutionary War and Civil War, respectively. Whether it is the blunt attitude of Philadelphians, the...
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History