For a number of years previous to the War of 1812, there had been a growing tendency on the part of the people of the East to emigrate into the West, but the unsettled conditions of the whole Lake region, threatened by Indian war and the bloody feuds of rival trading-companies, held the bulk of the pioneers along Lake Ontario. Now the floodgates burst loose. Thousands of settlers hurried into Ohio, and others pushed on through the wilderness into Michigan. In 1818, the _Walk-in-the-Water_, the first steamer to float upon the Upper Lakes, was launched in Lake Erie, and began making trips from Buffalo to Detroit, charging eighteen dollars per passenger for the journey. Other vessels engaged in the passenger trade and emigrants were enabled to travel entirely by water. By 1820, Ohio possessed a population of over half a million. Nineteen out of twenty of the west-bound pioneers stopped somewhere along the shores of Lake Erie, and at this date Michigan’s population was less than nine thousand. But with the coming of other steamers, not only Michigan, but Illinois and Wisconsin began to receive a part of the westward-flowing tide. The Erie Canal had been opened as early as 1825, and the rapidity of the growth of commerce on the Inland Seas may be judged by the fact that in 1836 more than three thousand canal-boats were employed upon it, a large part of their traffic being the transportation of emigrants and their effects to the larger vessels on Lake Erie. During this year, there were ninety steamboat arrivals at Detroit, and one of these vessels, the _United States_, carried as high as seven hundred emigrants on a single trip. From that day to this, the ships of the Great Lakes have never been able to more than keep pace with the demands of trade. In 1836, vessel-men earned as high as eighty per cent. on the cost of their vessels. To-day they are still earning thirty.