Short answers, pulled from the story.
National Prohibition in the United States began on the 16th of January 1920, when the Eighteenth Amendment went into effect after a year's required delay following passage of the Volstead Act on the 28th of October 1919. It ended on the 5th of December 1933, when the Twenty-first Amendment was ratified.
Initially, alcohol consumption fell to about 30% of pre-Prohibition levels. Within a few years, however, the illicit market recovered to roughly two-thirds of what it had been before the ban, as bootlegging and organized crime filled the gap.
Detroit and Chicago became notorious as centers for prohibition-dodging during the Roaring Twenties. About 75% of all alcohol smuggled into the United States crossed the Detroit-Windsor border. Al Capone operated his bootlegging empire in Chicago, while Lucky Luciano was a major figure in New York City.
Canada had national prohibition from 1918 to 1920. Russia and the Soviet Union banned alcohol from 1914 to 1925. Iceland instituted total prohibition in 1915, Norway in 1916, Finland in 1919, and the United States from 1920 to 1933. The Faroe Islands maintained prohibition from 1907 to 1992.
Prohibition generally drove the market underground rather than eliminating it. Bootlegging became a major business for organized crime, illegal stills spread through rural areas and city slums, and large-scale smuggling from Canada supplied demand. Both the United States and the Soviet Union repealed their total bans after less than 15 years.
Edwin Scrymgeour was a Scottish politician who served as Member of Parliament for Dundee from the 15th of November 1922 to the 8th of October 1931. He is the only person ever elected to the House of Commons on a prohibitionist ticket, having founded the Scottish Prohibition Party in 1901 and defeated Winston Churchill to win his seat in 1922.