October 1, 1937: Hemp Becomes a Crime
On October 1, 1937, the Marihuana Tax Act went into effect. Overnight, a plant that American farmers had cultivated for over 300 years — a plant that George Washington and Thomas Jefferson grew on their estates — became functionally illegal. The law didn’t technically ban hemp outright. Instead, it imposed a punitive tax structure so burdensome that growing, selling, or possessing any part of the cannabis plant without a government-issued tax stamp became a federal crime. And those tax stamps? The government almost never issued them.
The first person convicted under the new law was Moses Baca, a Mexican-American man in Denver, Colorado. His crime: possessing a quarter ounce of cannabis. His sentence: 18 months in federal prison. The very next day, Samuel Caldwell became the first person convicted for selling — he got four years of hard labor at Leavenworth. The message was clear. This wasn’t regulation. This was criminalization, and it was deliberate.
The Plant That Built the Navy
Here’s what makes this whole thing absurd. Hemp wasn’t some obscure crop that nobody cared about. It was a strategic military resource. The U.S. Navy ran on hemp. Every battleship in the fleet required approximately 34,000 feet of hemp rope and an additional 34,000 feet of hemp rigging. Hemp fiber was used for ship cordage, parachute webbing, and shoelaces for every pair of military boots. The word “canvas” literally comes from “cannabis” — that’s how fundamental this plant was to civilization.
Before 1937, most of America’s industrial hemp fiber came from the Philippines — specifically Manila hemp (abacá), processed through Philippine ports. It was cheap, abundant, and nobody in Washington thought twice about the supply chain. That was about to change.
December 7, 1941: Reality Hits
When Japan bombed Pearl Harbor and swept through Southeast Asia in early 1942, they didn’t just capture territory — they cut off America’s entire Manila hemp supply. Suddenly, the U.S. military was facing a catastrophic shortage of the very fiber it needed to fight a war. Rope. Rigging. Parachute webbing. All of it depended on hemp, and all of it was gone.
The government had exactly two options: lose the war, or grow hemp. They chose hemp.
1942: “Hemp for Victory”
In 1942, the United States Department of Agriculture produced and distributed a 14-minute propaganda film called “Hemp for Victory.” The narrator opens with a direct appeal:
“Long ago, when these ancient Grecian temples were new, hemp was already old in the service of mankind… For the first time in over a century, American hemp is again being cultivated.”
The film didn’t just encourage farmers to grow hemp — the government mandated it. Farmers who agreed to cultivate hemp received draft deferments. The USDA distributed 400,000 pounds of hemp seed to farmers across the Midwest. A new government entity, War Hemp Industries, Inc., oversaw the construction of 42 hemp processing mills across the heartland. By 1943, American farmers had planted over 400,000 acres of hemp — from Wisconsin to Kentucky to Indiana.
The government printed a special booklet, “Hemp: A War Crop,” and distributed it to every participating farmer. County agricultural agents held mandatory hemp-growing seminars. 4-H clubs organized hemp harvesting events. This wasn’t some fringe effort — it was a full-scale national agricultural mobilization.
1945: The War Ends — So Does the Truth
As soon as the war ended, the government did something remarkable. It pretended none of this ever happened. The hemp mills were shut down. The tax stamps dried up again. Farmers who had been growing hemp as patriotic duty went back to being potential criminals. And the film?
The USDA denied that “Hemp for Victory” ever existed.
For decades, when researchers, journalists, and activists asked about the film, they were told there was no record of it. The Library of Congress had no copy. The National Archives had no copy. The USDA said they had no knowledge of any such film. It was as if the government had erased an entire chapter of American agricultural history.
1989: Jack Herer Proves Them Wrong
In 1989, hemp activist and author Jack Herer — whose book The Emperor Wears No Clothes became the bible of the hemp legalization movement — tracked down copies of “Hemp for Victory.” He and his researchers found prints in private collections and confirmed them against wartime records. Herer personally donated copies to the Library of Congress, forcing the government to acknowledge what it had denied for nearly half a century.
Today, the film is freely available on the Internet Archive and YouTube. You can watch your own government beg American farmers to grow the same plant it spent 47 years pretending it never endorsed.
Matt’s Take
Let that sink in. The United States government made hemp illegal in 1937, sent a man to prison for 18 months over a quarter ounce, then turned around five years later and produced a literal propaganda film begging farmers to grow it because they needed it to win a war. Then — after those farmers saved the country’s supply chain — they made it illegal again and denied their own film existed for 47 years.
This isn’t conspiracy theory. This is documented, verifiable history. The film exists. The conviction records exist. The War Hemp Industries paperwork exists. They lied. Not about something ambiguous — they lied about a film that they themselves produced, distributed, and screened in theaters across America.
If they’ll lie about a 14-minute movie for 47 years, what else are they lying about? That’s the question every American should be asking.
Sources
- Wikipedia — Hemp for Victory
- Wikipedia — Marihuana Tax Act of 1937
- Internet Archive — Hemp for Victory (1942 Film)
- Farm Collector — Hemp for Victory: How American Farmers Answered the Call
- Global Hemp — A History of Hemp in America
- Wikipedia — Jack Herer
- U.S. Department of Agriculture, Hemp: A War Crop (1943), Farmers’ Bulletin No. 1935
- PBS — The War (Ken Burns): Manila Hemp and the Pacific Theater

