The Roaring Decade is a term used to refer to the 1920s, which was a period of great economic prosperity and social change in the United States. The decade was characterized by a booming economy, increased consumerism, and the emergence of new cultural movements such as jazz music and the Harlem Renaissance. It was also a time of great political and social upheaval, with the passage of Prohibition and the rise of organized crime. The term 'Roaring Decade' is often used to describe this period of American history.