Prohibition: The Real History
Cannabis prohibition was not the product of scientific consensus. It was built on racism, corporate lobbying, and political opportunism — facts that are now thoroughly documented and openly acknowledged by its own architects.
Before Prohibition (pre-1910)
Until the early 20th century, cannabis was a fully legal and widely used medicine in the United States. The US Pharmacopeia listed it from 1850 to 1942. Dozens of pharmaceutical companies — including Squibb, Eli Lilly, and Parke-Davis — sold cannabis tinctures openly in pharmacies as treatments for pain, insomnia, and nervous disorders. Hemp was grown across the country for rope, paper, and textiles. There was no public concern about cannabis and no scientific basis for banning it.
Immigration & the Birth of Anti-Cannabis Sentiment
After the Mexican Revolution (1910–1920), hundreds of thousands of Mexican immigrants entered the US Southwest, bringing with them recreational cannabis smoking — then deliberately called "marihuana" to emphasize its foreign origin. Anti-immigration hysteria drove the first state bans: Utah (1915), California (1913), Texas (1919). Newspaper headlines warned of "Mexican marihuana" driving crime waves. The science didn't support the claims — but the racism made the narrative politically powerful.
Harry Anslinger & the Federal Bureau of Narcotics
Harry Anslinger, appointed head of the Federal Bureau of Narcotics in 1930, is the single most important architect of cannabis prohibition. His bureau was facing post-Prohibition budget cuts and needed a new target. Anslinger launched a nationwide media campaign portraying cannabis as a violence-inducing drug causing murder, insanity, and sexual deviance — the "reefer madness" narrative. His internal memos and Congressional testimony are filled with racial slurs, explicitly linking cannabis to Black jazz musicians and Mexican immigrants. He told Congress: "Marijuana is the most violence-causing drug in the history of mankind." No scientific evidence supported this claim.
The Marihuana Tax Act (1937)
The 1937 Marihuana Tax Act effectively federally banned cannabis by imposing prohibitive taxes on its transfer. The American Medical Association opposed it — their representative, Dr. William Woodward, testified that the evidence of harm was fabricated and that prohibition would destroy legitimate medicine. Congress ignored him and passed the act in under three minutes of substantive debate. Corporate interests played a role: William Randolph Hearst (whose newspapers had been running Anslinger's stories for years) owned timber and paper mills threatened by hemp, and Du Pont had just patented nylon — a direct competitor to hemp rope and fabric.
Nixon, the CSA & Schedule I (1970–1971)
President Nixon's Controlled Substances Act (1970) placed cannabis as Schedule I — the most restrictive classification, reserved for drugs with "no accepted medical use and high abuse potential." This directly contradicted Nixon's own Shafer Commission, which recommended decriminalization after two years of research. Nixon rejected the report without reading it. In 1994, his domestic policy chief John Ehrlichman admitted plainly: "We knew we couldn't make it illegal to be against the Vietnam War or Black, but by getting the public to associate the hippies with marijuana and Blacks with heroin, we could disrupt those communities, arrest their leaders, and vilify them."
- ✓US Pharmacopeia: listed cannabis 1850–1942
- ✓First state ban: Utah 1915
- ✓Federal ban: Marihuana Tax Act 1937
- ✓AMA opposed the 1937 ban
- ✓Schedule I designation: 1970 CSA
- ✓Shafer Commission recommended decrim — Nixon ignored it
- ✓Nixon aide confirmed racial motivation in 1994