It is one of the anomalies of the human story that these peoples, who could not be assimilated and unified under the skies of Europe, should on coming to America discover an amazing genius for cooperation, for fusion, and for harmonious effort. Yet they were the same people when they came here that they had been on the other side of the Atlantic. Quite apparently, they found something in our institutions, something in the American system of Government and society which they themselves helped to construct, that furnished to all of them a political and cultural common denominator.