Philadelphia (1,293), largest city in Pennsylvania, on the Delaware, 100 m. from the sea and 90 m. by rail SW. of New York; is the third city in the Union in population, manufactures, and commerce, regularly built with plain substantial dwelling-houses; recently more splendid public buildings have been erected, the town-hall, of white marble, is the second highest structure in the world; a masonic temple and Government offices of granite and the Mint are also fine buildings; there is a university and colleges of science, medicine, art, and music, many churches, a Roman Catholic cathedral, and many hospitals and charitable institutions; the industries include locomotive building, saw-making, woollen and cotton goods, sugar and oil refining, and chemical works; it trades largely in coal. Founded by William Penn in 1682, it was the central point of the War of Independence; the first Congress met here, and the Declaration of Independence was signed (1776) in a building still standing; here too the Federal Union was signed (1778) and the constitution drawn up (1787), and from 1790 to 1800 it was the capital of the United States.