At midnight on 17 January 1920, the United States — a nation with a saloon on every corner and a whiskey tradition older than the republic — went officially dry. The 18th Amendment, ratified a year earlier, banned the manufacture, sale and transport of "intoxicating liquors", and the Volstead Act, passed over President Wilson's veto, defined intoxicating with puritan rigour as anything over half of one per cent alcohol. The evangelist Billy Sunday staged a mock funeral for "John Barleycorn" and preached that slums would soon be a memory. The Anti-Saloon League's master lobbyist, Wayne Wheeler — arguably the most effective pressure-group operator in American history — had spent two decades manoeuvring politicians into this moment, alongside the Woman's Christian Temperance Union. What the drys called the "noble experiment" would last almost fourteen years and fail in almost every way that mattered. The movement had deep roots — a generation earlier Carrie Nation had smashed Kansas saloons with a hatchet — but it was Wheeler's cold-eyed single-issue politics, and wartime hostility to German-American brewers, that finally pushed the amendment through.
The law leaked from the start, partly by design. Drinking itself was never illegal, and neither was liquor already in your cellar — the wealthy laid down stupendous stocks before the deadline. Doctors could prescribe "medicinal whiskey", and pharmacies dispensed it enthusiastically; the Walgreens chain grew from around twenty stores to more than five hundred during the dry years. Sacramental wine flowed to congregations that grew mysteriously devout. Home winemaking sheltered under a fruit-juice clause, and California growers sold bricks of concentrated grape juice bearing the immortal warning not to dissolve the brick in water and leave it in a cupboard, lest it ferment into wine.
Rum Row and the real McCoy
Supply simply moved offshore and underground. Ships anchored beyond the three-mile limit in floating liquor markets — "Rum Row" — off New York and New Jersey, until the limit was pushed out and the trade professionalised. The rum-runner Bill McCoy, who sold unadulterated top-shelf liquor, is popularly credited with inspiring "the real McCoy", though etymologists note the phrase predates him — a legend worth flagging in any quiz. Onshore, speakeasies replaced saloons at several times their density, and enforcement descended into theatre: the agents Izzy Einstein and Moe Smith made thousands of arrests using vaudeville disguises, while the federal government, more darkly, ordered industrial alcohol denatured with poisons; drinking redistilled industrial spirits killed thousands of Americans by the experiment's end.
The most durable consequence was organisational. Prohibition handed a gigantic consumer market to criminals, and the smarter ones built corporate structures to serve it — fleets, breweries, lawyers, accountants, and politicians and police on salary. Chicago's Al Capone became the era's emblem, reputedly clearing tens of millions of dollars a year and insisting he was merely a businessman supplying a public demand. The gang wars peaked with the St Valentine's Day Massacre of 14 February 1929, when seven men of Bugs Moran's North Side gang were machine-gunned in a garage by killers dressed partly as policemen. No one was ever convicted of it. Capone fell instead to accountancy: in 1931 he was convicted of tax evasion and sentenced to eleven years. Eliot Ness and his "Untouchables" harried Capone's breweries and later sold the legend, but it was the tax case that closed the ledger.
The thirsty exit
By the late 1920s enforcement was visibly losing, and the Depression finished the argument: a legal liquor industry meant jobs and tax revenue, and prominent converts — including the socialite Pauline Sabin, whose women's organisation for repeal outgrew the WCTU — made repeal respectable. Franklin Roosevelt campaigned on it; in March 1933 the Cullen–Harrison Act relegalised low-alcohol beer, greeted by the line attributed to FDR, "I think this would be a good time for a beer." On 5 December 1933 Utah supplied the decisive thirty-sixth ratification of the 21st Amendment — the only amendment ever to repeal another, and the only one ratified by state conventions rather than legislatures. The bootleggers' skills outlived the ban: souped-up whisky cars in the American South fed directly into the founding of stock-car racing, NASCAR's origin story. Some states stayed dry for decades — Mississippi held out until 1966 — but the national experiment was over, leaving behind a tax-stamped liquor industry, a professionalised FBI-era underworld, and a standing lesson about laws that a third of the country regards as optional.
Quiz nuggets
- National Prohibition ran from 17 January 1920 to 5 December 1933, under the 18th Amendment and the Volstead Act's 0.5 per cent limit.
- Medicinal whiskey prescriptions were legal, and the Walgreens pharmacy chain grew from about 20 stores to over 500 during Prohibition.
- Al Capone was never convicted over the 1929 St Valentine's Day Massacre; he fell to a tax-evasion conviction in 1931.
- Grape concentrate bricks carried a warning telling buyers exactly how to accidentally make wine.
- The 21st Amendment, ratified when Utah voted on 5 December 1933, is the only amendment that repeals another.