A student asked, "what was Prohibition?"
Prohibition was when the United States banned the manufacture, transportation, and sale of liquor. In 1917 the Congress passed what would become the 18th Amendment and sent it to the states for ratification.
In January of 1919, prohibition became part of the Constitution. Congress wrote laws to enforce prohibition, but they were weak. Congress never put enough law enforcement officers behind the enforcement of prohibition.
Prohibition led to more organized crime. The mob ran fake businesses that had casinos and bars in the back. For many reasons prohibition just did not work.
In 1933 the 21st Amendment was adopted which repealed the 18th Amendment, ending Prohibition.
It's interesting (at least to me) that some of the opponents of women's suffrage were against women voting because they feared they would ban alcohol.
The country banned alcohol on January 16, 1919 (though it didn't take effect for a year.) Women got the right to vote nationally on August 18, 1920.
So we banned alcohol 8 months before women got the right to vote?
Not exactly. Before the 19th Amendment there were 15 where women could have voted for Prohibition before women got the right nationally. Many of those states were sparsely populated western states, but population doesn't matter for a constitutional amendment. You just need 3/4 of the states.
So did women ban alcohol the first chance they got fulfilling all the worst nightmares of suffrage opponents? From what I can tell probably not. I'm not an expert on this topic, but it looks like the country would have done it even without women voting. Though the suffrage movement and the temperance movement were closely related.
National Prohibition Act http://www2.potsdam.edu/alcohol/Controversies/National-Prohibition-Act.html#.VO-wqPnF9HU
Strange Allies: Women's Suffrage and Prohibition
States Grant Women the Right to Vote