What term describes the era of economic prosperity in the U.S. during the 1920s?

The term that describes the era of economic prosperity in the U.S. during the 1920s is indeed "The Roaring Twenties." This period was marked by significant economic growth, increased consumerism, and vibrant cultural changes. The nickname reflects the dynamic social and artistic dynamism of the time, which saw the rise of jazz music, changes in fashion, and a flourishing of the arts. The prosperity that characterized this decade allowed many people to enjoy a higher standard of living, giving rise to a culture of excess and innovation.

While "The Jazz Age" is closely related to the Roaring Twenties, as it emphasizes the flourishing jazz music and its cultural impact, it doesn’t encompass the broader economic prosperity aspect as fully. "The Great Depression," on the other hand, refers to the economic downturn that followed the Roaring Twenties, while "The Gilded Age" describes a different period (roughly the late 19th century) that was characterized by rapid economic growth but also significant social issues and corruption. Thus, "The Roaring Twenties" is the most accurate term to describe the prosperous era of the 1920s.