USA Philadelphia

Philadelphia, colloquially Philly, is the largest city in the U.S. state of Pennsylvania, and the sixth-most populous U.S. city with a 2019 estimated population of 1,584,064.

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.