
Philadelphia was founded in 1682 by William Penn to serve as capital of Pennsylvania Colony. During the American Revolution, Philadelphia played an instrumental role as a meeting place for the Founding Fathers of the United States, who signed the Declaration of Independence in 1776 and the Constitution in 1787. Philadelphia was one of the nation's capitals during the Revolutionary War, and the city served as the temporary U.S. capital while Washington, D.C., was under construction. 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.