Prohibition began on January 16th 1920 and banned the manufacture, sale or transport of alcohol in the USA. Campaigners for this legislation believed it would end poverty, reduce crime and corruption and improve the health of the nation.
For 14 years, a great deal of time and effort went into enforcing the law but it was a losing battle, mainly because of organised crime and corruption in law enforcement. By 1926 it was obvious that the Noble Experiment was not working. However, the law was not repealed until 1933.