The commissioners in charge of the project performed one interesting service in these early days by putting Chicago on the map; but the two terminals, Ottawa on the Illinois and Chicago on Lake Michigan--both plotted in 1830--were very largely figures of speech at that time. The day of miracles was at hand, however, for the little town of one hundred people at the foot of Lake Michigan. The purchase of the lands of the Potawatomies, the Black Hawk War in 1832, which brought steamboats to Chicago for the first time, and the decision of Illinois in 1836 to pledge her good name in favor of the Illinois and Michigan Canal made Chicago a city of four thousand people by the panic year of 1837. So absorbed were these Chicago folk in the building of their canal and in wresting from their lake firm foothold for a city (reclaiming four hundred feet of lake bed in two years) that the panic affected their town less than it did many a rival. Although the canal enterprise came to an ominous pause in 1842, after the expenditure of five millions, the pledge of the State stood the enterprise in good stead. Local financiers, together with New York and Boston promoters, advanced about a quarter of a million, while French and English bankers, notably Baring Brothers, contributed about three-quarters of a million. With this assistance the work was carried to a successful ending. On April 10, 1848, the first boat passed over the ninety-mile route from Chicago to Ottawa, and the Great Lakes and the Mississippi Basin were united by this Erie Canal of the West. Though its days of greatest value were soon over, no one can exaggerate the importance of this waterway in the growth and prosperity of Chicago between 1848 and 1860. By 1857 Chicago was sending north and south annually by boat over twenty million bushels of wheat and corn. The awakening of the lands behind Lake Erie, Lake Huron, and Lake Michigan brought forth innumerable demands for roads, canals, and railways to the ports of Buffalo, Cleveland, Toledo, Detroit, Milwaukee, and Chicago. There were actually hundreds of these enterprises undertaken. The development of the land behind Lake Superior was particularly spectacular and important, not only because of its general effect on the industrial world but also because out of it came the St. Mary's River Ship Canal. Nowhere in the zone of the Great Lakes has any region produced such unexpected changes in American industrial and commercial life as did the region of Michigan, Wisconsin, and Minnesota contributory to Lake Superior. If, as the story goes, Benjamin Franklin said, when he drew at Paris the international boundary line through Lake Superior, that this was his greatest service to America, he did not exaggerate. The line running north of Isle Royale and thence to the Lake of the Woods gave the United States the lion's share of that great inland seaboard and the inestimably rich deposits of copper and iron that have revolutionized American industry.