The Roaring Twenties was a decade of economic prosperity and mass production in the United States following World War I. New industries like automobiles and radios grew rapidly due to affordable mass production. However, the passage of Prohibition led to the rise of bootleggers and speakeasies, and many Americans took on debt they could not repay, foreshadowing the Great Depression. Politically, the era was dominated by Republican presidents Warren Harding, Calvin Coolidge, and Herbert Hoover. Socially, lifestyles became more urban and focused on leisure, though traditional rural values still held sway for many Americans.