‘The value of any foreign immigration is dependent upon two factors, first, upon the readiness of its assimilation with the native stock, and secondly, upon the more positive quality of favorable influence upon the adopted country. In the historical outline presented in the first volume, the value of the German element becomes manifest mainly when measured by the standard of assimilation. This assimilating process was accelerated by three causes: irst, by kinship with other leading formative elements of the nation; secondly, by equal distribution of the German population over the whole territory of the United States; and finally, by the extensive settlement of the German colonists on the frontier and in Western territory, where the moulding forces typically American were most potent’ – these are the first lines of the book’s introduction. The author tells about German Diaspora in the US and its influence on the American culture.