Cannabis Criminalization
Cannabis did not become illegal because it was dangerous — it became illegal because of who was using it, and who stood to lose money if it remained legal.
The Weaponization of Xenophobia
In the early 1900s, cannabis was mostly known in the West as a quiet pharmaceutical ingredient or industrial hemp. Following the Mexican Revolution of 1910, an influx of Mexican immigrants arrived in the US, bringing with them traditional recreational use of the plant, which they called mariguana.
- ▸Sensationalist media: William Randolph Hearst's newspapers printed fabricated stories of "marijuana-crazed" immigrants committing brutal crimes.
- ▸Name change: Prohibitionists deliberately stopped using the scientific term "cannabis" and adopted the Spanish slang "marijuana" to frame the plant as an alien threat to white, civilized society.
- ▸Harry Anslinger: The first commissioner of the US Federal Bureau of Narcotics spearheaded a deliberate propaganda campaign in the 1930s, distributing fabricated narratives (the "Reefer Madness" campaigns) claiming that a single puff would drive minorities to commit horrific acts of violence.
Corporate Lobbies & Competitors
The criminalization of cannabis was also highly profitable for emerging industrial giants:
- ▸DuPont & the paper industry: Industrial hemp is an incredibly efficient source of fiber. DuPont had just patented nylon, and timber-reliant paper magnates (including Hearst) saw hemp as a massive threat to their monopolies. Demonizing cannabis wiped out the hemp industry as collateral damage.
- ▸Pharmaceutical shift: The medical industry was moving toward synthetic, standardized, patentable pills. A raw botanical plant that any citizen could grow for free was entirely incompatible with emerging pharmaceutical profit models.
The 1937 Marihuana Tax Act
This Act effectively criminalized cannabis nationwide by imposing prohibitive taxes and strict regulations on the plant. It did not ban cannabis directly — it made compliance so expensive and bureaucratic that legal commerce became impossible. This approach was later ruled unconstitutional, but by then the damage was done: cannabis was locked into the public consciousness as a dangerous narcotic.
Sources: Historical records of the Marihuana Tax Act of 1937; Harry Anslinger archives; Hearst newspaper archives