The Prohibition Era refers to the period in American history from 1920 to 1933 when the manufacture, sale, and transportation of alcoholic beverages were banned under the 18th Amendment. This time was characterized by a significant cultural shift, as it fueled the rise of speakeasies, organized crime, and a public rebellion against the law. The era is closely associated with social movements advocating for temperance, which ultimately led to the eventual repeal of the amendment.