What does the 21st Amendment relate to?

The 21st Amendment to the United States Constitution is significant because it repeals the 18th Amendment, which had instituted the prohibition of alcohol. This amendment is unique as it represents the only instance in U.S. history where a constitutional amendment has been entirely repealed by another amendment. Ratified in 1933, the 21st Amendment allowed for the legal production, sale, and consumption of alcoholic beverages, effectively overturning the nationwide ban that had been in place since 1920.

This period of prohibition had led to a range of social and economic issues, prompting the need for its repeal to regulate the alcohol industry rather than ban it outright. The 21st Amendment also granted states the authority to regulate the importation and transportation of alcoholic beverages within their own borders, allowing for a balance between federal and state control over alcohol law. Thus, its primary focus is explicitly on the legalization of alcohol, making the answer clear and definitive.