American nationalism
The Beardian interpretation of the causes of the Civil War downplayed slavery, abolitionism, and issues of morality. It ignored constitutional issues of states' rights and even ignored American nationalism as the force that finally led to victory in the war. Indeed, the ferocious combat itself was passed over as merely an ephemeral event. Much more important was the calculus of class conflict. As the Beards explained in "The Rise of American Civilization" (1927), the Civil War was really a: