The Rockefellers became the owners of the great Mesaba iron ore range in Minnesota and of the Colorado Fuel and Iron Company, the chief competitor of United States Steel. It is the largest factor in several of the greatest American banks. Above all, it is the single largest railroad power in America today. CHAPTER III. THE EPIC OF STEEL It was the boast of a Roman Emperor that he had found the Eternal City brick and left it marble. Similarly the present generation of Americans inherited a country which was wood and have transformed it into steel. That which chiefly distinguishes the physical America of today from that of forty years ago is the extensive use of this metal. Our fathers used steel very little in railway transportation; rails and locomotives were usually made of iron, and wood was the prevailing material for railroad bridges. Steel cars, both for passengers and for freight, are now everywhere taking the place of the more flimsy substance. We travel today in steel subways, transact our business in steel buildings, and live in apartments and private houses which are made largely of steel. The steel automobile has long since supplanted the wooden carriage; the steel ship has displaced the iron and wooden vessel. The American farmer now encloses his lands with steel wire, the Southern planter binds his cotton with steel ties, and modern America could never gather her abundant harvests without her mighty agricultural implements, all of which are made of steel. Thus it is steel that shelters us, that transports us, that feeds us, and that even clothes us.