SIMPSONS: How did the law go away? The law was repealed with the 21st Amendment in 1933.

Homer vs. The 18th Amendment
PROHIBITION
SIMPSONS: WHO campaigned against alcohol? Women's Christian Temperance Union and Anti-Saloon League
SIMPSONS: What made people want to ban alcohol? Belief in the negative effects of alcohol on society
SIMPSONS: Why do people ignore the law?
SIMPSONS: WHO was in charge of enforcing prohibition?
SIMPSONS: WHO provided the alcohol? Bootleggers and speakeasies
SIMPSONS: What was Prohibition’s effect on crime? Prohibition led to an increase in organized crime and illegal alcohol trafficking
SIMPSONS: Where did people go to drink? Speakeasies and underground clubs

SIMPSONS: How did the characters react to Prohibition being repealed? The characters celebrated by drinking openly and having a party.