By what nickname naming a decade is the prosperous 1920s in the United States commonly known?

The prosperous 1920s in the United States are commonly known as the Roaring Twenties.

The decade lasted from 1920 through 1929 and was associated with rapid economic growth, mass production, and rising consumer spending. Automobiles, household electricity, radios, and recorded music became increasingly important parts of American life. The period’s cultural energy also helped popularize jazz, modern advertising, new fashions, and nightlife.

The nickname reflects the decade’s social and artistic dynamism, especially in major cities. The Harlem Renaissance flourished, women gained new public and political visibility after the Nineteenth Amendment, and figures such as Babe Ruth and Charles Lindbergh became national celebrities. The decade is also called the Jazz Age, although “Roaring Twenties” is the standard answer for the question’s wording.

The prosperity was uneven. Farmers and coal miners often struggled, and Prohibition made alcoholic beverages illegal nationally. The era ended with the 1929 stock-market crash, followed by the Great Depression. “The Gilded Age” refers mainly to the late nineteenth century, not the 1920s.