1920s30s

1920s30s is a label used by historians to refer to the interwar period spanning the 1920s and 1930s, the years after World War I and before World War II. The era was defined by rapid social change, technological advancement, economic volatility, and political upheaval across many regions.

The 1920s featured relative economic expansion in the United States and some parts of Europe, alongside cultural flourishing—the Jazz Age, cinema's transition to sound, Art Deco design, and the growth of consumer society. Urbanization and mass media reshaped daily life, while social attitudes shifted in areas such as gender roles and leisure.

The 1930s were dominated by the Great Depression following the 1929 stock market crash, with widespread unemployment, deflation, and poverty. Governments experimented with economic policy, including public works, monetary reform, and social welfare programs, such as the United States' New Deal. The decade also saw political radicalization and the rise of totalitarian movements in some countries, as well as continuing imperial expansion and growing international tensions.

The period concluded as the 1930s gave way to global conflict with the onset of World War II in 1939, but its political, economic, and cultural legacies shaped later decades, influencing economic policy, debates over democracy and dictatorship, and shifts in art, science, and international relations.