The enigma of the South.--On understanding the South.--The historian's use of nationalism and vice versa.--The literature on the background of the Civil War.--The Lincoln theme and American national historiography.--Depletion and renewal in Southern history.--John Brown and the paradox of leadership among American Negroes.--Horace Greeley and peaceable secession.--Why the Republicans rejected both compromise and secession.--Jefferson Davis and the political factors in Confederate defeat.--The Civil War in the history of the modern world; a comparative view.