History of The United States - Roaring Twenties and The Great Depression

Roaring Twenties and The Great Depression

Main article: History of the United States (1918–1945)

In the 1920s the U.S. grew steadily in stature as an economic and military world power. The United States Senate did not ratify the Treaty of Versailles imposed by its Allies on the defeated Central Powers; instead, the United States chose to pursue unilateralism. The aftershock of Russia's October Revolution resulted in real fears of communism in the United States, leading to a Red Scare and the deportation of aliens considered subversive.

While public health facilities grew rapidly in the Progressive Era, and hospitals and medical schools were modernized, the nation in 1918 lost 675,000 lives to the Spanish flu pandemic.

In 1920, the manufacture, sale, import and export of alcohol were prohibited by the Eighteenth Amendment. Prohibition encouraged illegal breweries and dealers to make substantial amounts of money selling alcohol illegally. The Prohibition ended in 1933, a failure. Additionally, the KKK re-formed during that decade and gathered nearly 4.5 million members by 1924, and the U.S. government passed the Immigration Act of 1924 restricting foreign immigration. The 1920s were also known as the Roaring Twenties, due to the great economic prosperity during this period. Jazz became popular among the younger generation, and thus was also called the Jazz Age.