Answer:
As a result of the Temperance Movement in the United States
Step-by-step explanation:
The Eighteenth Amendment was actually the result of decennaries of effort by the temperance movement in the United States and during which time was by and large pondered a progressive amendment. In 1906, the Anti-Saloon League (short version can be seen here: ASL) began leading a campaign to ban the sale of alcohol at the state level.