Combined with the streams from the East came the German migration into the Middle West. Over half a million, mainly from the Palatinate, Wuertemberg, and the adjacent regions, sought America between 1830 and 1850, and nearly a million more Germans came in the next decade. The larger portion of these went into the Middle West; they became pioneers in the newer parts of Ohio, especially along the central ridge, and in Cincinnati; they took up the hardwood lands of the Wisconsin counties along Lake Michigan; and they came in important numbers to Missouri, Illinois, Indiana, and Michigan, and to the river towns of Iowa. The migration in the thirties and forties contained an exceptionally large proportion of educated and forceful leaders, men who had struggled in vain for the ideal of a liberal German nation, and who contributed important intellectual forces to the communities in which they settled. The Germans, as a whole, furnished a conservative and thrifty agricultural element to the Middle West. In some of their social ideals they came into collision with the Puritan element from New England, and the outcome of the steady contest has been a compromise. Of all the States, Wisconsin has been most deeply influenced by the Germans. By the later fifties, therefore, the control of the Middle West had passed to its Northern zone of population, and this zone included representatives of the Middle States, New England, and Germany as its principal elements. The Southern people, north of the Ohio, differed in important respects from the Southerners across the river. They had sprung largely from the humbler classes of the South, although there were important exceptions. The early pioneer life, however, was ill-suited to the great plantations, and slavery was excluded under the Ordinance. Thus this Southern zone of the Middle West, particularly in Indiana and Illinois, constituted a mediating section between the South and the North. The Mississippi still acted as a bond of union, and up to the close of the War of 1812 the Valley, north and south, had been fundamentally of the same social organization. In order to understand what follows, we must bear in mind the outlines of the occupation of the Gulf Plains. While settlement had been crossing the Ohio to the Northwest, the spread of cotton culture and negro slavery into the Southwest had been equally significant. What the New England States and New York were in the occupation of the Middle West, Virginia, the Carolinas, and Georgia were in the occupation of the Gulf States. But, as in the case of the Northwest, a modification of the original stock occurred in the new environment. A greater energy and initiative appeared in the new Southern lands; the pioneer's devotion to exploiting the territory in which he was placed transferred slavery from the patriarchal to the commercial basis. The same expansive tendency seen in the Northwest revealed itself, with a belligerent seasoning, in the Gulf States.