Roaring Twenties was the period of the 1920's in the United States. The Roaring Twenties were years of rapid economic growth, rising prosperity for many people, and far-reaching social changes for the nation. The period is sometimes called the Jazz Age, because of the new style of music and the pleasure-seeking people who made it popular. It is also called the Tribal Twenties, because of the rise of nativism (hostility toward foreigners). This nativism led to immigration restrictions and the growth of the Ku Klux Klan, a white secret society.