Final answer:
The Eighteenth Amendment initiated Prohibition, banning the manufacture, transport, and sale of alcohol in the U.S. from 1920 to 1933. The era ended with the Twenty-first Amendment, which repealed Prohibition.
Step-by-step explanation:
The Eighteenth Amendment, The Eighteenth Amendment was a significant constitutional change that took effect in 1920, ushering in the era of Prohibition in the United States. This amendment made it illegal to manufacture, transport, and sell intoxicating liquors, aiming to address societal problems attributed to alcohol consumption.
Its implementation was facilitated by the Volstead Act, which defined 'intoxicating liquors' and provided for the enforcement of Prohibition.
However, the amendment did not ban the actual drinking of alcohol. Enforcement proved to be challenging, with widespread bootlegging and the rise of organized crime. After 14 years, the failure of Prohibition led to its repeal through the passage of the Twenty-first Amendment in 1933.