By 1830 the Southern inundation ebbed and a different tide flowed in from the northeast by way of the Erie Canal and steam navigation on the Great Lakes to occupy the zone unreached by Southern settlement. This new tide spread along the margins of the Great Lakes, found the oak openings and small prairie islands of Southern Michigan and Wisconsin; followed the fertile forested ribbons along the river courses far into the prairie lands; and by the end of the forties began to venture into the margin of the open prairie. In 1830 the Middle West contained a little over a million and a half people; in 1840, over three and a third millions; in 1850, nearly five and a half millions. Although in 1830 the North Atlantic States numbered between three and four times as many people as the Middle West, yet in those two decades the Middle West made an actual gain of several hundred thousand more than did the old section. Counties in the newer states rose from a few hundred to ten or fifteen thousand people in the space of less than five years. Suddenly, with astonishing rapidity and volume, a new people was forming with varied elements, ideals and institutions drawn from all over this nation and from Europe. They were confronted with the problem of adjusting different stocks, varied customs and habits, to their new home. In comparison with the Ohio Valley, the peculiarity of the occupation of the northern zone of the Middle West, lay in the fact that the native element was predominantly from the older settlements of the Middle West itself and from New York and New England. But it was from the central and western counties of New York and from the western and northern parts of New England, the rural regions of declining agricultural prosperity, that the bulk of this element came. Thus the influence of the Middle West stretched into the Northeast, and attracted a farming population already suffering from western competition. The advantage of abundant, fertile, and cheap land, the richer agricultural returns, and especially the opportunities for youth to rise in all the trades and professions, gave strength to this competition. By it New England was profoundly and permanently modified. This Yankee stock carried with it a habit of community life, in contrast with the individualistic democracy of the Southern element. The colonizing land companies, the town, the school, the church, the feeling of local unity, furnished the evidences of this instinct for communities. This instinct was accompanied by the creation of cities, the production of a surplus for market, the reaching out to connections with the trading centers of the East, the evolution of a more complex and at the same time a more integrated industrial society than that of the Southern pioneer.