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Pennsylvania, constituent state of the U.S., one of the original 13 American colonies. It is bounded to the north by Lake Erie and New York; to the east by New York and New Jersey; to the south by Delaware, Maryland, and West Virginia, and to the west by West Virginia and Ohio. Its capital is Harrisburg.

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Pennsylvania (PA) lies in the eastern United States, the state has a very rich history including an important role in the nation’s founding. At Independence Hall in Philadelphia, on , the United States Declaration of Independence was formally signed, and in 1863 the pivotal Battle of Gettysburg took place in southern Pennsylvania. The state’s economy relies on services, steel ...

Pennsylvania was founded in 1681 through a royal land grant to William Penn, the son of the commonwealth's namesake. Before that, between 1638 and 1655, a southeast portion of the state was part of New Sweden, a Swedish colony.