Cannabis in 1920s America
How marijuana went from an obscure pharmacy ingredient to a racialized moral panic during Prohibition-era America.
The 1920s are often described as the birth of American cannabis culture, but the reality is messier. Most Americans in the 1920s had no meaningful contact with recreational cannabis. What did happen was a slow drip of state-level bans, sensational newspaper stories about Mexican immigrants and Black jazz musicians, and the seeds of federal prohibition that would sprout in the 1930s. The romantic image of jazz clubs full of vipers passing joints is partly real, partly retrofitted nostalgia.
Legal landscape entering the decade
Cannabis entered the 1920s as a legal but increasingly suspect substance. It had been listed in the United States Pharmacopeia since 1850 as a treatment for a wide range of ailments, and cannabis extracts and tinctures were sold by companies like Parke-Davis and Eli Lilly [1]. The 1906 Pure Food and Drug Act required cannabis to be labeled on patent medicines but did not restrict its sale [2].
State-level prohibition began before the 1920s — California (1913), Utah (1915), and Texas (1919) among the earliest — and accelerated through the decade Strong evidence. By 1931, twenty-nine states had passed some form of cannabis restriction [3]. These early laws were often quiet additions to broader pharmacy or poison acts and passed with little public debate.
Who was actually using cannabis?
Recreational cannabis use in 1920s America was concentrated in specific communities, not widespread. Mexican laborers who came north during and after the Mexican Revolution brought the practice of smoking marihuana with them, particularly into Texas, New Mexico, Arizona, and Louisiana [3][4]. In port cities like New Orleans, Caribbean and Latin American sailors introduced cannabis into dockside and jazz-adjacent communities [4].
Black musicians in New Orleans, Kansas City, Chicago, and later Harlem developed a small but visible cannabis subculture. Louis Armstrong, who began smoking regularly in the 1920s, later called it "an assistant — a friend" and used the term "gage" throughout his life [5]. His 1928 recording "Muggles" — slang for a joint — is one of the earliest cultural artifacts of American cannabis music culture Strong evidence.
Outside these communities, cannabis was rare. The popular image of white flappers and speakeasy patrons passing joints is largely a later invention; illegal alcohol was overwhelmingly the drug of the Jazz Age Disputed.
The New Orleans panic and early press coverage
New Orleans became the first major American city where cannabis generated sustained press coverage. Starting around 1920, the New Orleans Item and Times-Picayune began running stories linking marijuana to crime, insanity, and — critically — to Mexican and Black users [4]. In 1926 the Item ran a multi-part series claiming marijuana was fueling a crime wave, a narrative later amplified nationally [3][4].
Dr. Frank Gomila, New Orleans Commissioner of Public Safety, wrote widely circulated pieces in the late 1920s describing marijuana as a menace, which helped shape federal policy in the following decade [3]. Historian Isaac Campos and others have documented that these claims recycled sensational tropes from earlier Mexican press coverage rather than reflecting rigorous evidence [4] Strong evidence.
How the word 'marihuana' took over
Before the 1920s, American doctors, pharmacists, and the general public typically called the plant cannabis or Indian hemp. The Spanish-derived marihuana (also spelled marijuana or mariguana) entered American English primarily through Mexican immigration and through the New Orleans press [3][4].
The shift was consequential. By using an unfamiliar foreign word, newspapers and later federal officials could frame the drug as an exotic threat rather than as the familiar cannabis tincture in the family medicine cabinet [3]. This linguistic sleight of hand made it easier to prohibit marihuana in the 1930s without the public realizing they were banning the same plant already in their pharmacies Strong evidence.
Federal groundwork
The federal government took no direct action against cannabis in the 1920s, but institutional groundwork was laid. The 1922 Narcotic Drugs Import and Export Act tightened controls on opiates and cocaine, and Treasury officials began informally treating cannabis as a related concern [2]. The Federal Bureau of Narcotics would not be created until 1930, but its future commissioner Harry Anslinger was already working in the Bureau of Prohibition by the late 1920s [3].
Internationally, the 1925 International Opium Convention in Geneva added Indian hemp to a schedule of controlled substances at the urging of Egypt and other delegations, obligating signatories — including the United States — to restrict its export and non-medical use [6]. This treaty is often overlooked but was a key precursor to domestic prohibition.
Myths that later attached to the decade
Several persistent claims about 1920s cannabis are exaggerated or wrong:
- "Jazz was built on weed." Cannabis was present in jazz circles but was one influence among many. Alcohol, heroin (in later decades), and simple long hours were arguably more influential on the music Anecdote.
- "Prohibition of alcohol drove Americans to marijuana." There is little contemporary evidence of large-scale substitution. Bootleg alcohol remained cheap and widely available Weak / limited.
- "Anslinger invented the anti-marijuana campaign in the 1920s." Anslinger's famous crusade came in the 1930s. The 1920s groundwork was laid mostly by local officials, state legislatures, and regional newspapers [3].
- "Cannabis was banned because of DuPont and Hearst." This conspiracy theory typically references the 1937 Marihuana Tax Act, not the 1920s, and is disputed by most historians who study the period [3][4] Disputed.
Sources
- Book Booth, Martin (2003). Cannabis: A History. Picador.
- Government U.S. Food and Drug Administration. 'Milestones in U.S. Food and Drug Law History.'
- Book Bonnie, Richard J. and Whitebread, Charles H. (1974). The Marihuana Conviction: A History of Marihuana Prohibition in the United States. University Press of Virginia.
- Book Campos, Isaac (2012). Home Grown: Marijuana and the Origins of Mexico's War on Drugs. University of North Carolina Press.
- Book Brothers, Thomas (2014). Louis Armstrong: Master of Modernism. W. W. Norton & Company.
- Government League of Nations (1925). International Opium Convention, Geneva, 19 February 1925.
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