Pennsylvania

Pennsylvania, officially theCommonwealth of Pennsylvania, is astatelocated in thenorthernandMid-Atlanticregions of the United States. TheAppalachian Mountainsrun through its middle.Pennsylvania,the33rd largest, the6th most populous, and the9th most densely populatedof the50 United States, is one of the13 original founding states; it came into being in 1681 as a result of a royal land grant toWilliam Penn, the son of the state's namesake.Philadelphia, the Keystone State’s largest city, displays its rich history in Independence Hall (where the Declaration of Independence and Constitution were signed) and the Liberty Bell, an enduring symbol of American freedom.