Why did Prohibition fail and what were its social consequences?
Prohibition, including the Eighteenth Amendment, the Volstead Act, organised crime, and repeal under the Twenty-first Amendment
A focused answer to the HSC Modern History dot point on Prohibition. The Eighteenth Amendment of 1919, the Volstead Act, the temperance movement, speakeasies and bootlegging, Al Capone and organised crime, the failure of enforcement, and the Twenty-first Amendment of 1933 that repealed Prohibition.
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What this dot point is asking
NESA expects you to explain why Prohibition was passed, why it failed, and what its social consequences were. Strong answers integrate the long temperance movement, the political opportunity of World War I, the Volstead Act's enforcement weaknesses, the rise of organised crime, the corruption of public life, and the politics of repeal in 1933.
The answer
The temperance movement
Temperance had been an organised American movement since the 1820s. The Woman's Christian Temperance Union (founded 1874, under Frances Willard from 1879) and the Anti-Saloon League (founded 1893 in Ohio, led by Wayne Wheeler) built a powerful single-issue coalition. By 1916 around half of all Americans lived in dry states or counties.
The First World War gave the movement its national opening. German-American brewers were under suspicion; grain was rationed; the Lever Food and Fuel Control Act (10 August 1917) banned the use of foodstuffs for distilling. The Eighteenth Amendment passed Congress on 18 December 1917 and was ratified on 16 January 1919; it took effect a year later, on 17 January 1920.
The Volstead Act
The National Prohibition Act, sponsored by Representative Andrew Volstead (Republican, Minnesota), defined the prohibited "intoxicating liquor" as any beverage over 0.5 per cent alcohol by volume. It was passed over Wilson's veto on 28 October 1919.
The Act preserved several loopholes: sacramental wine for churches, medicinal whisky on prescription, near-beer (0.5 per cent or less), and home production of fruit juice (used for grape "bricks" sold with the warning that fermentation would produce wine).
Enforcement was assigned to the Treasury Department's Bureau of Prohibition with around 1,500 to 3,000 agents to police a continental country with 18,700 miles of Canadian border and 3,700 miles of Mexican border.
Bootlegging and the speakeasy
Demand for alcohol was largely unmoved by the law. Consumption fell only briefly in 1920 to 1921 before recovering. Suppliers responded.
- Smuggling
- Whisky moved from Canada (Windsor across the Detroit River); rum from the Bahamas, Cuba, and the British West Indies ("Rum Row" off the East Coast). Fast boats and the long coastline defeated the small Coast Guard.
- Domestic production
- Stills proliferated. Industrial alcohol was diverted; the Treasury responded with mandatory denaturing in 1927 that killed around 10,000 Americans by 1933.
- The speakeasy
- Illegal drinking establishments grew from around 15,000 saloons before Prohibition to an estimated 30,000 speakeasies in New York City alone by 1927. The Cotton Club in Harlem and the 21 Club in Manhattan became cultural fixtures.
Per capita alcohol consumption is estimated to have recovered to around 70 per cent of pre-Prohibition levels by the late 1920s.
Organised crime
Bootlegging delivered violent territorial monopolies. Chicago became the symbol.
Chicago. Big Jim Colosimo was murdered on 11 May 1920. Johnny Torrio took over and consolidated the "Chicago Outfit"; Torrio retired after being shot in January 1925 and handed control to his lieutenant Al Capone. Capone's main rival was the North Side Gang under Dion O'Banion (murdered 1924) and then Bugs Moran. The Saint Valentine's Day Massacre on 14 February 1929 killed seven of Moran's men in a garage on North Clark Street.
Capone's estimated revenue reached 60 million dollars a year by 1929 (around 1 billion in 2026 dollars). He was eventually convicted not of murder or bootlegging but of tax evasion, on 17 October 1931, and sentenced to 11 years at Atlanta and then Alcatraz.
New York. The "Five Families" took the form they would keep into the post-war era under Lucky Luciano, who eliminated Joe Masseria (15 April 1931) and Salvatore Maranzano (10 September 1931) and reorganised the Italian-American mafia around the Commission.
The Bureau of Investigation (renamed the FBI in 1935 under J. Edgar Hoover) expanded its remit through the era, with high-profile cases against John Dillinger (killed in Chicago, 22 July 1934) and others.
Corruption and the failure of enforcement
Corruption was endemic. Chicago Mayor "Big Bill" Thompson (in office 1915 to 1923 and 1927 to 1931) was a Capone ally. Around 10 per cent of Prohibition agents were dismissed for misconduct. The conviction rate for federal Prohibition cases was around 60 per cent, but penalties were small and trials were jury-nullified in the cities.
A few enforcement figures became famous. Eliot Ness led the "Untouchables" squad in Chicago against Capone from 1929. Treasury agent Izzy Einstein became famous for his Manhattan disguises.
The Wickersham Commission and the politics of repeal
Hoover appointed the National Commission on Law Observance and Enforcement under George W. Wickersham in May 1929. Its report (January 1931) found Prohibition unenforceable but, against the evidence, recommended its retention. The contradiction destroyed remaining respect for the law.
The Depression added the decisive argument. A re-legalised alcohol industry would generate excise revenue and jobs. Franklin Roosevelt's 1932 Democratic platform pledged repeal. The Beer Permit Act (Cullen-Harrison Act, 22 March 1933) re-legalised 3.2 per cent beer with effect from 7 April 1933 ("happy days are here again"). Full repeal followed through the Twenty-first Amendment, the only Amendment passed by state conventions rather than legislatures, ratified on 5 December 1933.
Mississippi remained dry until 1966; many counties remain dry today.
Social consequences
- Public health
- Alcohol-related deaths fell early but rose again as denatured industrial alcohol entered the supply. Cirrhosis deaths dropped around 30 per cent in 1920 to 1921 and recovered as supply recovered.
- Tax revenue
- Federal alcohol revenue (around 14 per cent of receipts before 1920) was lost, then regained after 1933.
- Cultural
- Drinking became socially mixed; women drank in speakeasies. Cocktails proliferated (often disguising poor-quality bootleg liquor). Jazz spread through the speakeasy circuit.
- Political
- The Eighteenth Amendment remains the only constitutional amendment in American history to have been repealed.
The logic of failure
The dot point is, at heart, a cause-and-effect chain: a ban met by inelastic demand created a black market, which organised crime captured and which corruption and lost legitimacy could not survive, ending in repeal. The two diagrams below set out that chain and its chronology.
Historiography
Daniel Okrent (Last Call, 2010) is the standard modern history.
David Kyvig (Repealing National Prohibition, 1979) is the standard study of the repeal movement.
Lisa McGirr (The War on Alcohol, 2015) emphasises the federal enforcement state Prohibition built.
Frederick Lewis Allen (Only Yesterday, 1931) is the contemporary view.
In one sentence
Prohibition (Eighteenth Amendment ratified 16 January 1919, in effect 17 January 1920; Volstead Act of 28 October 1919) failed because alcohol demand was inelastic, enforcement was understaffed, organised crime (Al Capone's 60-million-dollar-a-year Chicago Outfit, the Saint Valentine's Day Massacre of 14 February 1929) supplied the market, corruption reached up to mayors, denatured industrial alcohol killed around 10,000 Americans, and the Wickersham Commission of January 1931 and the Depression revenue argument carried repeal through the Twenty-first Amendment on 5 December 1933.
Examples in context
Example 1. The Volstead Act (28 October 1919) and the Eighteenth Amendment. The Amendment was ratified on 16 January 1919 and took effect on 17 January 1920. Daniel Okrent (Last Call, 2010) draws on Anti-Saloon League and Bureau of Prohibition records. Lisa McGirr (The War on Alcohol, 2015) shows how Prohibition expanded federal policing in ways that prefigured the modern security state.
Example 2. Al Capone and the St Valentine's Day Massacre (14 February 1929). Seven members of the North Side gang were killed in Chicago. The Wickersham Commission (1929 to 1931) under Hoover documented the failure of enforcement. The Twenty-first Amendment (ratified 5 December 1933) repealed Prohibition.
Exam-style practice questions
Practice questions written in the style of NESA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Practice (NESA)10 marksWhy did Prohibition fail in the United States?Show worked answer →
A 10-mark "why" needs three or four developed causes plus a judgement.
- Thesis
- Prohibition failed because alcohol demand was unmoved by law, enforcement was understaffed, organised crime supplied the market at scale, and the law lost legitimacy in the cities. The Depression's revenue argument finally tipped repeal.
- Demand was inelastic
- Around 60 per cent of Americans drank before Prohibition; consumption fell only briefly in 1920 and 1921 before recovering. Cities (New York, Chicago, Detroit, San Francisco) never accepted the law. New York alone had around 30,000 speakeasies by 1927.
- Enforcement was undersized
- The Volstead Act of 28 October 1919 was enforced by the Treasury's Bureau of Prohibition with around 1,500 to 3,000 agents nationally. The 18,700-mile Canadian border and 3,700-mile Mexican border were unguardable.
- Organised crime supplied the market
- Bootlegging produced violent territorial monopolies. Al Capone took over the Chicago Outfit in 1925 after the murders of Big Jim Colosimo (1920) and Johnny Torrio's retirement. The Saint Valentine's Day Massacre (14 February 1929) killed seven members of Bugs Moran's gang. Capone earned an estimated 60 million dollars a year by 1929.
- Industrial alcohol poisoning and corruption
- Treasury-mandated denatured industrial alcohol killed around 10,000 Americans (1920 to 1933). Corruption reached up to Mayor "Big Bill" Thompson of Chicago and federal Prohibition agents.
- Legitimacy collapsed
- The Wickersham Commission (January 1931) reported the law unenforceable. The Depression added a revenue argument: an alcohol tax could close the federal deficit. FDR's 1932 platform promised repeal. The Twenty-first Amendment was ratified on 5 December 1933.
Markers reward the Volstead date, Capone, the Wickersham Commission, and the 1933 ratification.
Practice questions
Original practice questions graded from foundation to exam level, each with a full worked solution. Try them before revealing the solution.
foundation3 marksOutline three reasons the Eighteenth Amendment was passed by 1919.Show worked solution →
A 3-mark "outline" wants three distinct, correctly dated reasons, each in a sentence.
- A long temperance movement
- The Woman's Christian Temperance Union (1874) and the Anti-Saloon League (1893) built a disciplined single-issue lobby; by 1916 around half of Americans lived in dry states or counties.
- The opportunity of World War I
- Anti-German feeling fell on brewers, grain was rationed for the war effort, and the Lever Act (1917) banned distilling foodstuffs.
- Moral and Progressive arguments
- Reformers blamed the saloon for poverty, crime and family breakdown, framing Prohibition as social improvement.
- Marking criteria
- 1 mark each for three distinct reasons; reward the temperance lobby, the WWI opening, and the dating (Congress 1917, ratified 16 January 1919).
foundation4 marksExplain why the Volstead Act was so hard to enforce.Show worked solution →
A 4-mark "explain" needs a cause-and-effect chain with specific detail.
- Tiny enforcement
- The Treasury's Bureau of Prohibition had only around 1,500 to 3,000 agents to police a continental country.
- Unguardable borders and coasts
- The 18,700-mile Canadian border, 3,700-mile Mexican border, and long coastline ("Rum Row") let smugglers run whisky and rum at will.
- Loopholes and demand
- Sacramental wine, medicinal whisky, near-beer and home fruit-juice "bricks" left legal channels open, and demand was inelastic - around 60 per cent of Americans had drunk before 1920.
- Corruption
- Agents were poorly paid; around 10 per cent were dismissed for misconduct, and city juries nullified.
- Marking criteria
- 1 mark for the undersized Bureau; 1 mark for borders/coastline; 1 mark for loopholes or inelastic demand; 1 mark for corruption or jury nullification.
core5 marksSource A (paraphrased, owned): The Wickersham Commission's report of January 1931 concluded that the laws enforcing national Prohibition could not be made effective, that respect for the law had been undermined, and that organised lawlessness had grown - yet the Commission's majority still advised against repeal.
Using Source A and your own knowledge, explain the failure of Prohibition by 1931. [5 marks]
Show worked solution →
A 5-mark "explain ... using the source" wants the source decoded, then linked to own knowledge.
- Decode the source
- Source A is the official verdict of Hoover's own commission (January 1931): the law was unenforceable and had bred organised crime, yet the majority illogically opposed repeal. That contradiction destroyed the law's remaining legitimacy.
- Own knowledge
- The findings reflected reality: a Bureau of Prohibition of around 1,500 to 3,000 agents, inelastic demand (around 30,000 speakeasies in New York City by 1927), and bootlegging empires - Al Capone's Chicago Outfit earned an estimated 60 million dollars a year and produced the Saint Valentine's Day Massacre (14 February 1929). Denatured industrial alcohol killed around 10,000 Americans, and corruption reached up to Chicago Mayor "Big Bill" Thompson.
- Outcome
- The report's self-contradiction, plus the Depression's revenue argument, carried repeal through the Twenty-first Amendment on 5 December 1933.
- Marking criteria
- 1 mark for reading the source's contradiction; 1-2 marks for own knowledge of enforcement weakness and organised crime; 1 mark for naming Capone or the Bureau's size; 1 mark for linking to repeal.
core6 marksSource B (paraphrased, owned): A recent historian argues that the lasting legacy of Prohibition was not the speakeasy or the gangster but the machinery of federal policing it created - a vastly enlarged Treasury enforcement arm, federal prisons, and a habit of national criminal law that long outlived 1933.
Using Source B and your own knowledge, assess the usefulness of this interpretation for understanding the consequences of Prohibition. [6 marks]
Show worked solution →
A 6-mark "assess the usefulness" question rewards origin/perspective plus own knowledge, ending in a judgement.
- Perspective
- Source B is the revisionist position associated with Lisa McGirr (The War on Alcohol, 2015), which shifts attention from the familiar Capone narrative to the state-building consequences of Prohibition. It is useful because it corrects the popular focus on gangsters and speakeasies.
- Corroboration from own knowledge
- It fits the record: the Bureau of Prohibition expanded federal Treasury enforcement; the Bureau of Investigation (renamed the FBI in 1935 under J. Edgar Hoover) grew through the era with cases against figures like John Dillinger (killed 22 July 1934); and the era normalised federal criminal jurisdiction.
- Limitation
- By foregrounding the enforcement state it can understate the more immediate social consequences - around 10,000 deaths from denatured alcohol, the corruption of city government, the lost alcohol-excise revenue (around 14 per cent of federal receipts before 1920), and the cultural shift to mixed-sex drinking.
- Judgement
- Highly useful for reframing Prohibition as a turning point in American state power, but it must be read alongside the public-health, criminal and cultural consequences rather than replacing them.
- Marking criteria
- 1 mark for identifying the revisionist/state-building perspective and naming McGirr; 1-2 marks for own knowledge of the expanding enforcement state; 1-2 marks for a limitation (public health, corruption, revenue, culture); 1 mark for a judgement on usefulness.
exam25 marksEvaluate the extent to which organised crime was the main reason Prohibition failed in the United States.Show worked solution →
This is an extended-response/essay. Markers reward a sustained, evidence-based argument that addresses the question directly and weaves in historiography - not a narrative.
Band-6 PLAN
- Thesis. Organised crime was the most visible symptom of Prohibition's failure but not its root cause: the law failed first because demand was inelastic and enforcement undersized, conditions that created the bootlegging market in the first place. Crime accelerated and dramatised the collapse, but legitimacy and the Depression revenue argument decided repeal. Organised crime mattered greatly, yet ranks below demand, enforcement weakness and lost legitimacy as the decisive cause.
- Argument 1 - The deeper cause: inelastic demand and tiny enforcement. Around 60 per cent of Americans drank; consumption recovered after a brief 1920 to 1921 dip. A Bureau of around 1,500 to 3,000 agents and 22,400 miles of land border could never close the supply. This gap, not the gangster, is what made bootlegging inevitable.
- Argument 2 - Organised crime as the engine of failure (its real importance). The market the law could not suppress was captured by violent monopolies. Al Capone's Chicago Outfit earned an estimated 60 million dollars a year; the Saint Valentine's Day Massacre (14 February 1929) made the violence national news. Crime made the law's failure spectacular and corrupted government up to Mayor "Big Bill" Thompson.
- Argument 3 - The decisive turn: lost legitimacy and the Depression. The Wickersham Commission (January 1931) declared the law unenforceable yet advised retention, destroying respect for it. The Depression then supplied the clinching argument: alcohol excise could fund the deficit, and FDR's 1932 platform pledged repeal, carried by the Twenty-first Amendment (5 December 1933).
- Historiography. Daniel Okrent (Last Call, 2010) treats Prohibition as a cultural-political experiment doomed by demand and enforcement realities, with crime a consequence. Lisa McGirr (The War on Alcohol, 2015) stresses the federal enforcement state Prohibition built, again de-centring the gangster. David Kyvig (Repealing National Prohibition, 1979) foregrounds the organised repeal movement and the Depression revenue argument as decisive.
- Judgement. Organised crime ranks high among the proximate causes and dramatised the failure, but the inelastic demand and undersized enforcement that produced it, and the collapse of legitimacy that the Wickersham report and the Depression confirmed, were more fundamental. Important, yes - the main reason, no.
MODEL PARAGRAPH (Argument 1)
Organised crime is best understood as a product of Prohibition's failure rather than its cause. The Eighteenth Amendment tried to suppress a demand that barely moved: around 60 per cent of Americans had drunk before 1920, and after a brief fall in 1920 and 1921 consumption recovered to perhaps 70 per cent of pre-Prohibition levels. Against that demand the Treasury fielded a Bureau of Prohibition of only some 1,500 to 3,000 agents, charged with sealing 18,700 miles of Canadian border, 3,700 miles of Mexican border and a long smuggler-friendly coastline. A market that large and a police force that small made a black market inevitable; the only open question was who would supply it. As Daniel Okrent argues in Last Call, Prohibition foundered on the gap between a cultural demand it could not extinguish and an enforcement apparatus it would not fund - the gangsters who filled that gap were the symptom of the failure, not its origin.
Marker's note. A band-6 response keeps "to what extent" in view throughout - ranking organised crime against inelastic demand, enforcement weakness and lost legitimacy rather than narrating the Capone story - anchors each claim in dated evidence (the Volstead date, the 60-million-dollar estimate, the Wickersham finding, the 1933 ratification), sets at least two historians in genuine tension, and reaches a graded judgement. Telling the gangster story without weighing it against the structural causes caps the response in the middle bands.
exam25 marksTo what extent were the social consequences of Prohibition more significant than its political consequences?Show worked solution →
This is an extended-response/essay. Markers reward a sustained, evidence-based argument that addresses the comparison directly and weaves in historiography - not a narrative.
Band-6 PLAN
- Thesis. Prohibition's social consequences - the criminal underworld, mass corruption, around 10,000 poisoning deaths and a transformed drinking culture - were the most immediate and visible, but its political consequences proved more enduring: a vastly enlarged federal enforcement state and the unique precedent of a repealed amendment. Both matter; the social effects dominated the 1920s, but the political legacy outlasted them.
- Argument 1 - The social consequences (immediate and severe). Bootlegging created violent monopolies (Capone's 60-million-dollar Outfit; the 1929 Massacre); denatured industrial alcohol killed around 10,000; drinking became socially mixed as women entered speakeasies and cocktails spread; jazz travelled the speakeasy circuit. These defined the lived experience of the decade.
- Argument 2 - The political consequences (more enduring). Prohibition built the federal enforcement state - the Bureau of Prohibition, expanded Treasury powers, and a growing Bureau of Investigation (FBI from 1935). It corrupted city government up to mayors and produced the only repealed amendment in American history (the Twenty-first, 1933), reshaping the balance between federal and state authority.
- Argument 3 - Weighing the two. The social damage was sharper in the moment, but much of it reversed after 1933 (deaths fell, the speakeasy closed). The political and institutional legacy - federal policing habits, the repeal precedent - persisted for decades, making it arguably more significant in the long run.
- Historiography. Lisa McGirr (The War on Alcohol, 2015) makes the strongest case for the political/state-building legacy as the central consequence. Daniel Okrent (Last Call, 2010) balances the social and political, treating the whole experiment as a cultural turning point. David Kyvig (Repealing National Prohibition, 1979) centres the politics of repeal itself.
- Judgement. Both sets of consequences are significant; the social effects dominated contemporaries' experience, but the enlarged federal enforcement state and the repeal precedent give the political consequences greater long-run weight - so "more significant" holds only once a time-horizon is specified.
MODEL PARAGRAPH (Argument 2)
Prohibition's political consequences outlasted its social ones precisely because they were institutional. To enforce a national ban the federal government built machinery it never fully dismantled: the Treasury's Bureau of Prohibition, expanded federal powers over interstate and cross-border crime, and a growing Bureau of Investigation that became the FBI under J. Edgar Hoover in 1935 and made its name pursuing Prohibition-era criminals such as John Dillinger. The experiment also corrupted government at every level, from federal agents to Chicago Mayor "Big Bill" Thompson, eroding public trust in office. Most strikingly, it ended in the Twenty-first Amendment of December 1933 - the only constitutional amendment ever repealed, and the only one ratified by state conventions rather than legislatures. As Lisa McGirr argues in The War on Alcohol, the durable legacy of Prohibition was less the speakeasy than the federal enforcement state it normalised, a shift in the balance of American government that long outlived the saloon's return.
Marker's note. A band-6 response sustains the comparison (always weighing social against political consequences), specifies a time-horizon to make "more significant" meaningful, anchors every claim in dated evidence, and deploys at least two historians in genuine tension. Listing consequences without ranking them, or ignoring the long-run institutional legacy, caps the response in the middle bands.