World War I: A global conflict that took place from 1914 to 1918, involving many countries and resulting in significant political, social, and economic consequences.
Prohibition: The nationwide ban on the production, sale, and transportation of alcoholic beverages in the United States from 1920 to 1933.
Suffrage Movement: The organized effort to secure voting rights for women in various countries during the late-19th and early-20th centuries.