Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States, with a population of 1,526,006 as of the 2010 U.S. Census. Philadelphia is also the commercial, cultural, and educational center of the Delaware Valley, home to 6 million people and the country's fifth-largest metropolitan area. The Philadelphia metropolitan division consists of five counties in... Pennsylvania and has a population of 4,008,994. Popular nicknames for Philadelphia are Philly and The City of Brotherly Love, the latter of which comes from the literal meaning of the city's name in Greek "brotherly love", compounded from philos "loving", and adelphos "brother". Philadelphia was founded on October 27, 1682 by William Penn, who planned a city along the Delaware River to serve as a port and place for government.
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| Founded: | October 27, 1682 |
| State: | Pennsylvania |
| Country: | United States of America |
| Population: | 1,447,395 |
| Area: | 135 sq. mi. |
| Time zone: | North American Eastern Time Zone |
| Also known as: | City of Brotherly Love, Philly, Philadelphia, Pennsylvania |