World War I: A global conflict that took place from 1914 to 1918, involving many nations and significantly impacting the political and social landscape of the early 20th century.
Roaring Twenties: A period of economic prosperity and cultural change in the United States during the 1920s, characterized by jazz music, flapper fashion, and an overall sense of exuberance.
Great Depression: The severe worldwide economic depression that lasted from 1929 to the late 1930s, causing widespread unemployment and economic hardships.