What is historically significant about the policy of

It was a foreign policy later adopted into domestic law.
It is an example of domestic policy resulting in international war.
Its unpopularity caused the repeal of a constitutional amendment.

The policy of prohibition, which banned the manufacture, sale, and transportation of alcoholic beverages in the United States, was historically significant because it exemplified the clash between moral values and individual freedoms. Enforced by the 18th Amendment in 1920, it led to a rise in organized crime and speakeasies, ultimately revealing the limitations of government intervention in personal liberties and societal behaviors. This stark discontent contributed to the eventual repeal of prohibition through the 21st Amendment in 1933, highlighting a major shift in public sentiment and policy.

The era of prohibition also sparked a cultural revolution, especially in cities like Chicago and New York. Jazz music flourished in underground bars, and the flapper lifestyle became a symbol of the 1920s, representing a break from traditional values. This vibrant cultural response not only defined a decade but also influenced social movements around gender equality and personal freedom, promoting a more open and diverse American society that continued to evolve long after repeal.