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Cities gallery[edit] Philadelphia, the largest city in Pennsylvania and sixth-largest city in the United States with a population of 1.6 million. Pittsburgh, the second-largest city in Pennsylvania. Allentown, the third-largest city in Pennsylvania. Reading, the fourth-largest city in Pennsylvania. Erie, the fifth-largest city in Pennsylvania.
2 Allentown — largest city of the Lehigh Valley, third largest city in state. 42.129561 -80.085214. 3 Erie — home to Pennsylvania's waterfront on Lake Erie, great for boating and beaches. 40.278333 -76.651111. 4 Hershey — birthplace of Hershey's chocolate. 40.039722 -76.304444.
Philadelphia, commonly referred to as Philly, is the most populous city in the U.S. state of Pennsylvania [11] and the second-most populous city in the Northeast megalopolis and Mid-Atlantic regions after New York City. Philadelphia is known for its extensive contributions to United States history, especially the American Revolution, and served ...
Governors of the Commonwealth of Pennsylvania. Five governors of the Commonwealth of Pennsylvania who have served since 1995, (left to right): Mark Schweiker, Tom Ridge, Tom Wolf, Tom Corbett and Ed Rendell, pose in front of the east facade of the Pennsylvania State Capitol in Harrisburg at Wolf's January 2015 gubernatorial inauguration.
Pennsylvania is the fifth-most populous state in the United States, with over 13 million residents as of the 2020 United States census. The state is the 33rd-largest by area and has the ninth-highest population density among all states. The largest metropolitan statistical area (MSA) is the southeastern Delaware Valley, which includes and ...
United States. The Province of Pennsylvania, also known as the Pennsylvania Colony, was a British North American colony founded by William Penn, who received the land through a grant from Charles II of England in 1681. The name Pennsylvania was derived from "Penn's Woods", referring to William Penn's father Admiral Sir William Penn .
Picoamp (pA), one trillionth of an ampere. Polyacrylamide, a gel-forming polymer. Polyamide, a family of synthetic materials used in fabrics. Predictive analytics, analyzes current and historical facts to make predictions about future or otherwise unknown events. Protactinium, symbol Pa, a chemical element.
