The Interwar Years refer to the period between World War I and World War II, spanning from 1918 to 1939. This era was marked by significant political, social, and economic upheaval across the globe, as nations grappled with the consequences of the Great War and prepared for the impending conflict of World War II. The economy during this time experienced drastic fluctuations, from the post-war boom to the devastating effects of the Great Depression, leading to widespread unemployment and social unrest.