What was the purpose of the 21st Amendment, and how did it impact the United States?

The purpose of the 21st Amendment was to repeal the 18th Amendment, which had established Prohibition in the United States. The 21st Amendment ended the nationwide ban on alcohol, giving states the power to regulate alcohol sales and consumption. This change had a significant impact on the country, leading to the revitalization of the alcohol industry, the creation of jobs, and increased tax revenue for states.