It is the coonty seat o Philadelphia Coonty, wi whilk it is coterminous. Popular eiknames for Philadelphia include Philly an The Ceety o Britherly Luve, frae the literal meanin o the ceety's name in Greek (Greek: Φιλαδέλφεια ([pʰilaˈdelpʰeːa], Modren Greek: [filaˈðelfia]) "britherly luve", compundit frae philos (φίλος) "luve", an adelphos (ἀδελφός) "brither").
A commercial, eddicational, an cultural centre, Philadelphia wis ance the seicont-lairgest ceety in the Breetish Empire (after Lunnon), an the social an geographical centre o the oreeginal 13 American colonies. It wis a centrepiece o early American history, host tae mony o the ideas an actions that gied birth tae the American Revolution an independence. It wis the maist populous ceety o the young Unitit States, although bi the first census in 1790, New York Ceety haed owertaen it. Philadelphia served as ane o the naition's mony caipitals durin the Revolutionary War an efter. Efter the ratification o the U.S. Constitution, the ceety served as the temporary naitional caipital frae 1790 tae 1800 whiles Washington, D.C. wis unner construction.
↑Source U.S. Census Bureau: State and County QuickFacts. Data derived from Population Estimates, American Community Survey, Census of Population and Housing, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.