 The city has been coterminous with the county since 1854.Philadelphia's 1952 Home Rule Charter was written by the City Charter Commission, which was created by the Pennsylvania General Assembly in an act of April 21, 1949, and a city ordinance of June 15, 1949.The existing city council received a proposed draft on February 14, 1951, and the electors approved it in an election held April 17, 1951.