ABSTRACT
World War I exhibited the community of American and European political interests in so fundamental a way as to make it predominant in the approach to European history for a generation and a necessary ingredient of it thereafter. For the first group international politics produced the vogue of diplomatic history in which the historical facts themselves manifested the general tenet of an American-European community of political destiny. For the second group politics formed points of crystallization for society and culture that were noncumulative and permitted concrete and intensive historical analysis. The Langer series represents a major attempt to unify the American scholarly and synthetic lines of historical tradition and thereby to create a distinctive American dimension of European history. The new forms of European history in America during this period, therefore, were essentially variant forms of historical integration.
