"1900 - 1999" . . . . . . "Decade of contradictions" . "The third part of a 10-part series of the 20th century. The \"Roaring Twenties\" see a major polarization of people around the world--people who embrace change and those who fear it. Prohibition leads to bootlegging and organized crime, African-American culture accelerates, membership in the KKK reaches and all-time high, Stalin and Mussolini gain power, American cities boom while agriculture lags, big spending and overproduction lead to the stock market crash." . . "1920s" . . . "History" . "The 20th century the 1920s : a decade of contradictions" . . . . . . . "Twentieth century" . . . . "United States" . . . .