National prohibition of alcohol (1920–33) — the “noble experiment” — was undertaken to reduce crime and corruption, solve social problems, reduce the tax burden created by prisons and poorhouses, and improve health and hygiene in America. ... The lessons of Prohibition remain important today.

Who pushed for prohibition?

The religious establishment continued to be central to the movement, as indicated by the fact that the Anti-Saloon League—which spearheaded the early 20th-century push for Prohibition on the local, state, and federal levels—received much of their support from Protestant evangelical congregations.

What was prohibition and why did it fail?

Prohibition ultimately failed because at least half the adult population wanted to carry on drinking, policing of the Volstead Act was riddled with contradictions, biases and corruption, and the lack of a specific ban on consumption hopelessly muddied the legal waters.