Roaring Twenties: A term used to describe the decade of the 1920s known for its economic prosperity, cultural changes, and social transformations.
Progressive Era: A period characterized by social activism and political reforms aimed at addressing societal problems caused by industrialization and urbanization during the late 19th century and early 20th century.
World War I (WWI): A global conflict fought primarily between European powers from 1914 to 1918 that had significant impacts on politics, society, and technology during the early part of the 20th century.