Cannabis Culture in Sub-Saharan Africa During the 1900s

Starting point: cannabis was already old news in 1900

By the time the 20th century began, cannabis had been used in parts of Sub-Saharan Africa for at least 600 years. Archaeological work at Great Zimbabwe and 14th-century smoking pipes recovered in Ethiopia suggest cannabis (alongside other plants) was burned ceremonially well before European contact ^[1] Strong evidence. The plant likely arrived via Indian Ocean trade routes, with Arab and Swahili merchants moving it down the East African coast, and from there inland along trade and migration corridors ^[2] Strong evidence.

By 1900, regional cultures had distinct names and uses: dagga among Khoekhoe and later Afrikaans speakers in Southern Africa, bangi (from Hindi/Arabic bhang) on the Swahili coast, diamba or liamba across the Congo basin and Angola, and matokwane among Sotho-Tswana groups. The Bashilenge of the Kasai region (in what is now the DRC) had reorganized parts of their political and religious life around hemp smoking in the late 19th century — the so-called Bena Riamba ("sons of hemp") movement documented by German explorer Hermann von Wissmann in the 1880s ^[3] Strong evidence.

Colonial prohibition (1900s–1920s)

The early 20th century is when cannabis stopped being a regulated-but-tolerated local crop and became contraband. South Africa banned the cultivation, sale, and use of dagga under the 1922 Customs and Excises Duty Amendment Act, and then pushed hard at the 1925 Second International Opium Convention in Geneva to have "Indian hemp" added to the international control list — which it was ^[4] Strong evidence. South Africa's delegate framed dagga as a threat to mine labor productivity and to white settler society, language that would echo for decades.

British East Africa (modern Kenya, Uganda, Tanzania) passed cannabis restrictions through the 1913 Opium Ordinance and subsequent amendments. The Belgian Congo banned chanvre in 1903. French West and Equatorial Africa moved more slowly but had region-wide controls by the 1920s. These laws were rarely about public health as understood today — they were about labor discipline, missionary morality, and aligning with the emerging international drug control system ^[5] Strong evidence.

Enforcement was patchy. Rural cultivation continued more or less openly in places like Lesotho's Maluti mountains, the Transkei, the Rif of northern Morocco (outside Sub-Saharan Africa but a useful comparison), and the Kasai. What changed was that growers and users were now criminals on paper.

Labor migration and the spread of smoking culture

The single biggest cultural force on 20th-century African cannabis was migrant labor — particularly the South African gold and diamond mines. Workers from Mozambique, Lesotho, Malawi (then Nyasaland), and what is now Zimbabwe cycled through the Witwatersrand on contracts, and dagga moved with them. Historian Chris Duvall documents how the mine compounds became sites of intense cross-cultural cannabis exchange, blending Sotho, Zulu, Tsonga, and Chewa smoking practices ^[2] Strong evidence.

This is also when the iconic Southern African water pipe — variously called a gourd, ghoodja, or splif — and the practice of smoking through a hollowed cow horn spread more widely. Earth pipes (smoking through a hole in the ground) were documented across the region but appear to have older roots ^[1] Weak / limited.

The popular claim that Rastafarianism brought cannabis sacrament to Africa gets this backwards. Rastafari emerged in 1930s Jamaica, drawing on the Pan-Africanism of Marcus Garvey and on ganja practices Indian indentured laborers had brought to the Caribbean. It later returned to Africa via reggae and the back-to-Africa movement, especially from the 1970s onward, layering on top of much older African cannabis traditions rather than founding them ^[6] Strong evidence.

Mid-century: the apartheid era and the 'dagga problem'

From the 1930s through the 1980s, South African authorities ran one of the most aggressive anti-cannabis campaigns on the continent. Police raids on Pondoland and the Transkei, aerial spraying programs, and prison sentences for possession defined the era. Apartheid-era propaganda blamed dagga for everything from interracial sex to communist subversion — a moral panic well-documented in newspaper archives of the period ^[7] Strong evidence.

Meanwhile, cultivars from KwaZulu-Natal — later marketed in the United States and Europe as "Durban Poison" — were being selected by smallholder farmers. The name "Durban Poison" itself is a Western export-market label that became widespread in the 1970s–80s, not a traditional African strain name Weak / limited. Genuine landrace material from the region is genetically distinct, but the marketing folklore around it (uniformly high THC, pure sativa lineage, ancient pedigree) is mostly retrospective storytelling.

In Central Africa, Mobutu's Zaire alternated between crackdowns and tolerance. In West Africa, cannabis cultivation expanded sharply after the 1970s as Ghanaian and Nigerian growers supplied domestic and European markets — a shift driven partly by economic crisis and partly by demobilized soldiers returning from the Burma campaign of WWII, who are widely credited (though not always with solid documentation) with popularizing smoking in coastal West Africa ^[8] Weak / limited.

Late century: export economies and the drug war

By the 1980s and 1990s, several Sub-Saharan countries had become significant cannabis producers for European markets. Lesotho, Malawi, Swaziland (Eswatini), Nigeria, Ghana, and the eastern DRC all developed sizable export sectors. The UN Office on Drugs and Crime began tracking African cannabis production seriously in the 1990s, consistently identifying the continent as the world's largest producer by area cultivated, though with low per-hectare yields compared to indoor Western grows ^[9] Strong evidence.

This era also saw the consolidation of regional brand names — Malawi Gold, Swazi Gold, Durban Poison, Congo Black — many of which were marketing constructs aimed at European and American buyers more than genuine local taxonomies. Local growers often had their own names that never made it into the international vocabulary.

The decade closed with cannabis still illegal almost everywhere on the continent, with the partial exception of customary tolerance in some rural areas. The South African Constitutional Court would not decriminalize personal use until 2018; Lesotho would not license medical cultivation until 2017. Those changes belong to the 21st century, but they were built on a century of failed prohibition.

What the historical record does and doesn't support

A few common claims worth flagging:

• "Africa is the original home of cannabis." No. Cannabis almost certainly originated in Central Asia. It reached Africa via trade, probably more than once ^[2] Strong evidence.
• "Rastafarianism is an African religion that gave the world ganja." Rastafari is Caribbean in origin, Pan-Africanist in ideology, and post-dates African cannabis use by centuries ^[6] Strong evidence.
• "Traditional African strains are pure sativa landraces unchanged for centuries." Genetic work suggests African cannabis populations are diverse and have exchanged genes with Asian and later European/American material throughout the 20th century Disputed.
• "Colonial bans were about protecting Africans from a dangerous drug." The archival evidence — including South Africa's own Geneva submissions — shows labor control and racial anxiety were dominant motives ^[4][5] Strong evidence.

For the texture of 20th-century African cannabis culture, the best single source is Chris Duvall's The African Roots of Marijuana (2019), which is also careful about what the evidence does and doesn't show ^[2].

Sources

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