1925–2025 Centenary of Cannabis Prohibition

Global Cannabis History Year

 

1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

If the history of Cannabis and humankind was a day, prohibition would only be its last 30 seconds.

From time immemorial Cannabis has grown, been grown, and used for countless purposes. Worldwide, Cannabis provided clothing, food, feed and bedding for livestock, medicine, and a spiritual and social enhancer. But things changed brutally, only a hundred years ago.

The modern prohibition of Cannabis sativa L. plant (also known as hemp, marihuana, भांग, dagga, конопля, ganja, 麻, pot, ntsangu, haschisch, canapa, riamba, قنب, siddhi, kif, cáñamo, bangui, 大麻, chanvre, konopí…) originated before 1925 in Brazil, Egypt, and South Africa. The USA came much, much later. 

But it was only in 1925 that Cannabis acquired a marked world character that continues to this day, as it entered international law for the first time.

1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

Photos taken at the Palais des Nations (UN, Geneva) on  the day of the Centenary: 19 February 2025.

1925 marks the birth of international treaty control over Cannabis/hemp

In 1925 (29 September), the Brussels Pharmacopoeia Treaty included for the first time Cannabis (herb, extract, tincture) in the International Pharmacopoeia, alongside other important medicines.

In 1925 also (19 February), the Geneva Opium Convention included “Indian hemp,” upon request from Egypt. For the first time, Cannabis had become an internationally-controlled drug. The conservative Brazilian, Egyptian, and South African governments had managed to extend to the entire planet their racist, colonially-biased, and intolerant views of an ancestral plant. The 1925 Opium Convention generated a descendance of treaties that continue to be in force worldwide today (like the Single Convention on Narcotic Drugs of 1961).

1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

Celebrate the diverse Cannabis heritage and cultures

Condemn the devastation of a 100 years of prohibition

1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

2025 Centenary of Cannabis Prohibition–Global Cannabis History Year

A global collective catharsis, looking back at 100 years of negative history –since the 1925 Geneva Opium Convention first brought “Indian hemp” under international drug control. Meanwhile, cannabis also entered the International Pharmacopea in the same year.

Let’s re-examine this dual history in light of the millenia of positive interactions with Cannabis sativa L. by all human societies. During 99% of human history cannabis was neither prohibited nor problematic. We will do it again!

Cannabis Embassy – Legatio Cannabis – 大麻大使馆 – سفارة القنب  (Decision 2024/GOV/12/03)

1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
1925–2025: Centenary of Cannabis Prohibition - Global Cannabis History Year | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
Cannabis after harvest. Poland. | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

5R, the Next Hundred Years: Re-legalisation and Regulation & Respect, Remedy and Reparations

After a century of failed global experiment of prohibition, time has come to work on the post-prohibition eraThe Cannabis Embassy and its partners have embarked on a journey for the next 100 years that goes through the safeguard, promotion, defense, diffusion, and recognition of the cannabis-human relationships and their positive impacts on our societies. The Cannabis Embassy continues to advance the rights of people who cultivate, use, like the Cannabis plant and its products –or simply happen to live by places where Cannabis grows or is being grown– and want peace. In the coming century, this means working on the conservation of cannabis ecosystems and the safeguarding of cannabis cultures, both forming part of a shared natural and intangible heritage of humankind, that survived a century of repression and attempts of eradication.

We all deserve peace, and we will continue to work towards bringing peaceful drug policy solution to the failed global war on drugs. For more information, check our our CESCR contribution, GRATK portal, and our UNESCO page.

United Nations Human Rights system: Office of the High Commissioner, Council, Treaty bodies, and Special Procedures | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
UNESCO United Nations Educational, Scientific, and Cultural Organisation | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب
Convention on Biological Diversity (CBD), United Nations Environment Programme (UNEP), and UN Food and Agriculture Organisation (FAO) | Cannabis Embassy – Legatio Cannabis — 大麻大使馆 — سفارة القنب

Partners Sponsors

Cannabis Embassy’s Non-profit Groups and Grassroots Associations (CENGGA)

Cannabis Embassy CENGGA members

Cannabis Embassy’s Non-profit Groups and Grassroots Associations

Cannabis Embassy’s Non-profit Groups and Grassroots Associations (CENGGA)

United Nations CND 2025 Delegation Sponsors

The following entities supported the 2025 Cannabis Embassy delegation in Vienna:

Her Many Voices, South African Cannabis and Hemp Industry Development Association (SACHIDA), Lynx Hemp, AlphaCAT, The Grand History of Cannabis, FAAAT-Forum Drugs Mediterranean, CannaFamily, Hempoint, Magazin Konopi, Cannacare, Mandragora Foundation, Veterans Action Council, CannaBizAfrica, ENCOD, Soft Secrets.

The Grand History of Cannabis

The Grand History of Cannabis

La Crème Gràcia & Mossy Giant

“The Turbulent History of a very misunderstood plant…”
The Grand History of Cannabis is a collaboration between a Catalan social club and a Dutch urban artist to illustrate the tumultuous history of popular cannabis cultures throughout ages & continents.

Cannabis Embassy’s Non-profit Groups and Grassroots Associations (CENGGA)

Sustainable Cannabis Policy Toolkit Reprint Sponsors

The following entities supported the 2025 reprint of the Cannabis SDG policy toolkit

Fields of Green for ALL, FAAAT-FDM, AlphaCAT, Astrasana, Hempoint, Her Many Voices, Cannactiva, Cannafamily, Naarden, Konopny Tata, Boveda, Magazin Konopi

Media Partners

The Grand History of Cannabis

Magazine Konopí

Magazine Konopí is the only print cannabis media in the Czech Republic. It has been established in 2018 by three prominent members of Czech cannabis community. Konopí covers every aspect of cannabis and hemp from laws to medicinal and industrial use and its readers are patients, medical professionals as well as recreational users and hemp and CBD businesses.

The Grand History of Cannabis

Soft Secrets

Soft Secrets is an international bimonthly magazine about cannabis & marijuana cultures. It is edited in Dutch, English (United Kingdom & United States), Spanish (Spain & Latin America), German, French, Italian, Czech, Polish

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