Title: Philadelphia
Content:  Philadelphia (colloquially known simply as Philly) is a city in the Commonwealth of Pennsylvania in the United States. It is the sixth-most-populous city in the United States and the most populous city in the state of Pennsylvania, with a 2020 population of 1,603,797. It is also the second-most populous city in the Northeastern United States, behind New York City. Since 1854, the city has had the same geographic boundaries as Philadelphia County, the most-populous county in Pennsylvania and the urban core of the eighth-largest U.S. metropolitan statistical area, with over 6 million residents. Philadelphia is also the economic and cultural center of the greater Delaware Valley along the lower 
Title: Economy of Philadelphia
Content:  The federal government has several facilities in Philadelphia. The city served as the capital city of the United States, before the construction of Washington, D.C. Today, the East Coast operations of the United States Mint are based near the historic district, and the Federal Reserve Bank's Philadelphia division is based there as well. Philadelphia is also home to the U.S. District Court for the Eastern District of Pennsylvania and the U.S. Court of Appeals for the Third Circuit.
Title: Outline of Philadelphia
Content:  The following outline is provided as an overview of and topical guide to Philadelphia: Philadelphia – largest city in the Commonwealth of Pennsylvania, the second largest city on the East Coast of the United States, and the fifth-most-populous city in the United States. It is located in the Northeastern United States along the Delaware and Schuylkill rivers, and it is the only consolidated city-county in Pennsylvania. As of the 2010 Census, the city had a population of 1,526,006, growing to 1,547,607 in 2012 by Census estimates. Philadelphia is the economic and cultural center of the Delaware Valley, home to over 6 million people and the country's sixth-largest metropolitan area. 
Title: Index of Pennsylvania-related articles
Content:  ; Pennsylvania State University ; Pennsylvania Turnpike ; Penn, William ; People from Pennsylvania ; commons:Category:People from Pennsylvania ; Philadelphia, colonial capital 1682–1776, state capital 1776–1799, national capital 1776, 1777, 1778–1783, and 1790–1800 ; Comcast SportsNet (Philadelphia all-sports television network) ; KYW (Philadelphia CBS television affiliate) ; Philadelphia City Council ; Philadelphia City Hall ; Philadelphia Flyers ; Philadelphia 76ers ; Wachovia Center ; Philadelphia International Airport ; Philadelphia Museum of Art ; Philadelphia National Constitution Center ; Philadelphia Eagles ; Lincoln Financial Field ; Philadelphia Phillies ; Citizens Bank Park ; Philadelphia Soul ; WCAU (Philadelphia NBC television affiliate) ; WIP-FM (Philadelphia sports talk radio station) ; WMGK (Philadelphia classic rock radio station) ; 
Title: History of Philadelphia
Content:  The written history of Philadelphia begins in 1682, when the city was founded by William Penn in the English Crown Province of Pennsylvania between the Delaware and Schuylkill rivers. Before then, the area was inhabited by the Lenape people. Philadelphia quickly grew into an important colonial city and during the American Revolution was the site of the First and Second Continental Congresses. After the Revolution the city was chosen to be the temporary capital of the United States. At the beginning of the 19th century, the federal and state governments left Philadelphia, but the city remained the cultural and financial center of the country. Philadelphia became one of the first U.S. industrial centers and the city contained a variety of industries, the largest being textiles. After the American Civil War Philadelphia's government was controlled by a Republican political machine and by the beginning of the 20th 
Title: Philadelphia
Content:  and Schuylkill rivers within the Northeast megalopolis. The Delaware Valley's 2019 estimated population of 7.21 million makes it the ninth-largest combined statistical area in the United States. Philadelphia is one of the oldest municipalities in the United States. William Penn, an English Quaker, founded the city in 1682 to serve as capital of the Pennsylvania Colony. Philadelphia played an instrumental role in the American Revolution as a meeting place for the Founding Fathers of the United States, who signed the Declaration of Independence in 1776 at the Second Continental Congress, and the Constitution at the Philadelphia Convention of 1787. Several other key events occurred in Philadelphia during the 
Title: Outline of Philadelphia
Content:  Columbia to serve as the national capital. ; Philadelphia as state capital (1776-1799) ; Pennsylvania Constitution of 1776 ; Supreme Executive Council of the Commonwealth of Pennsylvania ; State capital (1776-1799) ; Philadelphia Convention (May 25 to September 17, 1787) – met in Independence Hall, where the states' delegates created the United States Constitution, placing the Convention among the most significant events in the history of the United States. ; Drafting of the Constitution of the United States (1787) ; Temporary capital of the United States (1790-1800) – Philadelphia served as the country's temporary capital while Washington, D.C. was being planned and developed. ; Philadelphia during World War II ; Philadelphia Experiment 
Title: Outline of Philadelphia
Content: Philadelphia is: a city in the state of Pennsylvania, in the United States ; Atlas of Philadelphia ; Population of Philadelphia ; 2010 U.S. Census: 1,526,006 people ; 2000 U.S. Census: 1,517,550 people (to see why the city shrank, see White flight) ; 1950 U.S. Census: 2,071,605 people ; Land area of Philadelphia: 134.101 sq mi 
Title: Philadelphia
Content:  42 million domestic tourists in 2016 who spent $6.8 billion, generating an estimated $11 billion in total economic impact in the city and surrounding four counties of Pennsylvania. Philadelphia is also a biotechnology hub. Philadelphia is the home of many U.S. firsts, including the nation's first library (1731), hospital (1751), medical school (1765), national capital (1774), university (by some accounts) (1779), stock exchange (1790), zoo (1874), and business school (1881). Philadelphia contains 67 National Historic Landmarks and the World Heritage Site of Independence Hall. The city became a member of the Organization of World Heritage Cities in 2015, as the first World Heritage City in the United States.
Title: Economy of Philadelphia
Content:   Philadelphia is the center of economic activity in Pennsylvania with the headquarters of five Fortune 1000 companies located within city limits. , the Philadelphia metropolitan area is estimated to produce a gross metropolitan product (GMP) of $490 billion, an increase from the $445 billion calculated by the Bureau of Economic Analysis for 2017, representing the eighth largest U.S. metropolitan economy. Philadelphia was rated by the GaWC as a 'Beta' city in its 2016 ranking of world cities. With a gross domestic product of $388 billion, the city of Philadelphia alone ranks ninth among world cities and fourth in the nation. The city is also the nation's fourth-largest consumer media market, as ranked by the Nielsen Media Research. The city is also home to the Philadelphia Stock Exchange. Philadelphia has shifted to an information technology and service-based economy. Financial activities account for the largest sector of the metro economy, and it is one of the largest health education and research centers in the United States. Philadelphia's history attracts many tourists, with the Liberty Bell receiving over 2 million visitors in 2010.

Question: What is Philadelphia the capital of?
Answer: United States of America.
the United States of America.
America.
U.S.A.
USA.
U.S.
US.
the US.
the USA.
US of A.
the United States.
U. S. A.
U. S.
the States.
the U.S.
'Merica.
U.S.
United States.
'Murica.