What major event in 1920 greatly impacted the popularity of amusement parks in the United States?

The event that significantly impacted the popularity of amusement parks in the United States in the 1920s was indeed related to the societal changes brought about by the Great Depression, but more specifically, the correct framing is that the period leading up to the Great Depression saw a boom in the amusement park industry.

During the 1920s, the U.S. experienced rapid economic growth, and people had disposable income to spend on leisure activities. This era is often referred to as the "Roaring Twenties," characterized by a cultural shift towards consumerism and entertainment. Amusement parks flourished as they provided affordable entertainment close to home. They were a means for families and individuals to escape the stresses of everyday life, especially as the economy thrived prior to the onset of the Great Depression at the end of the decade.

The other options, such as World War I and the invention of television, played different roles in shaping entertainment choices and societal norms, but they do not directly correlate with the significant impact on amusement parks in that particular era. World War I was more about global conflict and its aftermath, while the introduction of television in the late 1940s marked a new era of home entertainment that transitioned public interest away from traditional outdoor attractions, but