Bangi

Bangi is the Swahili word for cannabis, while Kenyan and Tanzanian English also use bhang. It belongs to a wider vocabulary linking East Africa with South Asia and the Arabian Sea. That connection does not establish a single voyage, borrowing language or date of arrival. Nor does the word alone identify whether the plant was eaten or smoked.

An Indian Ocean word

In The African Roots of Marijuana, Chris S. Duvall treats Hindi bhang, Persian bang and Arabic banj as possible sources for Swahili bangi. Maritime exchange provides a plausible setting, but the resemblance cannot identify the immediate intermediary.

The names could also change independently of the plant. In some East African languages, Duvall finds bangi alongside unrelated cannabis names, suggesting that a newer trading word sometimes replaced an older local one. A borrowed name is not necessarily evidence that cannabis itself had just arrived.

Form	Where
Bangi	Swahili: Tanzania, Kenya, and beyond
Bhang, banghi	Kenyan and Tanzanian English, including official usage
Bangi	Juba, South Sudan, where the cannabis seized in a raid of 2026 was reported under that name

Nineteenth-century caravans carried the word inland, but Duvall distinguishes merchants from the porters and paddlers who transported goods and smoked cannabis. He also traces a different westward history for the diamba family of names. The Bena Riamba movement should not be presented as the direct result of a documented Zanzibar introduction in the 1850s.

A trade before the colonies

By the nineteenth century cannabis was part of the folk medicine of many East African peoples, and a long-distance trade had grown up around it. Cannabis grown by the Ngoni was carried to the port of Kilwa. Under German rule, small Nyamwezi traders took it from Unyamwezi, in the interior, to the coast and to Zanzibar. The few accounts from the period suggest that in East Africa it was mainly smoked.

The colonial bans

As the trade grew, the European administrations moved against it, seeing the habit as an obstacle to their purposes.

Year	Measure
1908	John Ainsworth, provincial commissioner at Kisumu, asked for a law, writing that cannabis had a most harmful effect on those who used it and caused crime
1914	The East Africa Protectorate banned it under the Opium Ordinance, in force from 1 January
1935	Tanganyika’s Dangerous Drugs Ordinance

Bangi today

Both countries still grow it widely. Kenya’s crop is centred on Mount Kenya and the shore of Lake Victoria; Tanzania’s on Tanga, Arusha, Kilimanjaro, Iringa and the lake zone. The United Nations counts both among the main producers of East Africa.

Older uses persist beside the trade. In rural Tanzania the plant treats earache, fever and malaria, and the leaves go into food. In Kisumu some traditional healers boil the buds and bathe children who have measles in the water.

Country	Present law
Kenya	The Narcotic Drugs and Psychotropic Substances (Control) Act, 1994. An amendment of 2022 halved the maximum for personal use to five years and allowed a fine
Tanzania	The Drug Control and Enforcement Act: a fine or up to three years for small amounts, at least thirty years for growing

In both countries the borrowed word is the everyday one. A petition by Kenyan Rastafari to be allowed it for worship was dismissed by the High Court in 2026.^[1][2][3][4]