WHEN the vast region known as Louisiana was purchased by President Jefferson, a century ago, the American people knew as little about it as the American colonies knew about the great territory called New France which came under English sovereignty at the end of the French War, fifty years earlier. But however great Louisiana was, and whatever its splendid stretch of gleaming waterway or rugged mountain range, it was sure that the race which now became its master would not shirk from solving the tremendous problems of its destiny. In 1763 the same race had taken quiet possession of New France, including the whole empire of the Great Lakes and all the eastern tributaries of the Mississippi River; in the half-century since that day this race had proved its vital powers of successful exploitation of new countries. In those fifty years a Tennessee, a Kentucky, an Ohio, and an Indiana and Illinois had sprung up out of an unknown wilderness as if a magician's wand had touched, one by one, the falling petals of its buckeye blossoms. Thus, New France had been acquired by a great kingdom, but the power of assimilation lay in the genius of the common people of England's seaboard colonies for home-building and land-clearing. Soon the era of brutal individualism passed from the Middle West and the old Northwest; weak as it was, the young American Republic, in the person of such men as Richard Henderson and Rufus Putnam, threw an arm about the wilderness, while George Rogers Clark, "Mad Anthony" Wayne, and William Henry Harrison settled the question of sovereignty with the red-skinned inhabitants of the land. Civilization often marched rough-shod into the American Middle West, bringing, however, better days and ideals than those which it harshly crushed. After Anthony Wayne's conquest of Northwestern Indiana at Fallen Timber (near Toledo, Ohio) in 1794 the burst of population westward from Pittsburg and Kentucky to the valley of the Mississippi was marvellous; by the time of the purchase of Louisiana in 1803 the rough vanguard of the race which had so swiftly opened Kentucky and Ohio and Tennessee to the world was crowding the banks of the Mississippi, ready to leap forward to even greater conquests. What these irrepressible pioneers had done they could do again. Those who affirmed that the purchase of Louisiana must prove a failure had counted without their host.