"This book traces the political, economic, social, and cultural phenomena that transformed America from an agrarian, primarily decentralized, moralistic, isolationist nation into an industrial, urban morally liberalized nation involved in foreign affairs in spite of itself. Beginning with Wilson and the entrance of the United States into World War I, Mr. Leuchtenburg covers the range of subsequent events: the fight over the League of Nations; the postwar Red scares and Palmer raids; the politics and foreign policy of the Harding and Coolidge administrations; the fate of progressivism in the twenties; the revolution in morals; the impact of the prosperity of the twenties on American character; the "political fundamentalism" which resulted in immigration restriction, the Scopes trial, Prohibition, and the Ku Klux Klan; Hoover and the early years of the depression--all reflecting the conflict between rural and urban attitudes that reached its crisis in the presidential campaign of 1928 and was finally settled as an aftermath of the collapse of 1929."--Back cover.