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19th century – 19th century

Zanzibar Commercial Empire

Zanzibar, Pemba, East African coast, and connected hinterlands

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The Zanzibar commercial empire was the Omani-led commercial system centred on Zanzibar and Pemba that expanded through plantation production, maritime treaties, customs administration, and caravan trade. Under Said bin Sultan, Zanzibar became a major emporium exporting cloves, ivory, slaves, rhinoceros horns, gum copal, and other goods while importing manufactured products from India, Europe, and the United States.

Territory · Empire

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Ask Uriti

  • How did the Zanzibar Commercial Empire empire rise and expand?
  • What role does Zanzibar Commercial Empire play in the Zanzibar region?
  • What is the link between Zanzibar Commercial Empire and East African slave trade?
  • About Zanzibar Commercial Empire: can you clarify “Zanzibar became a major East African commercial emporium”?

The Story

A commercial empire centred on Zanzibar

During the first half of the nineteenth century, Omani political and commercial interests shifted toward Zanzibar and Pemba and, indirectly, toward other East African coastal city-states. Said bin Sultan encouraged Indian enterprise and settlement, farming out Zanzibar’s customs collection to an Asian merchant by 1804 and attracting a substantial Asian residence in the capital by 1811. Asian merchants soon became customs agents, financiers, middlemen, and wholesale traders.

Said also introduced and expanded clove cultivation in Zanzibar. By 1850, the island held near-complete domination of the international clove market, while plantation production supplemented dhow and caravan commerce. Using slave labour on about forty-five plantations, Said was producing two-thirds of the 8,000 frasilas exported from Zanzibar by 1840; the extract defines a frasila as approximately 35 pounds.

Commercial treaties with the United States, Britain, France, and the German states strengthened Zanzibar’s international position. The 1833 treaty with the United States offered a five per cent duty on American imports and no duties on East African goods purchased by Americans, stimulating shipping and trade in ivory, gum copal, and cloves. British influence nevertheless increased through military support and diplomatic pressure, including the 1847 Hamerton Treaty restricting the export of slaves beyond the sultan’s East African dominions.

By the middle of the nineteenth century, Zanzibar had become the most important commercial emporium on the East African coast. Its system connected manufactured imports from India, Europe, and the United States with exports of cloves, ivory, slaves, rhinoceros horns, gum copal, and other goods. The extract presents this unequal exchange as enriching foreign merchants while contributing to the economic subordination and underdevelopment of indigenous East African societies.

Key Points

  • Zanzibar became a major East African commercial emporium
  • Clove plantations expanded through enslaved labour
  • Asian merchants gained a dominant economic position
  • Treaties connected Zanzibar to global markets
  • Trade produced unequal exchange and regional dependency

Trust

average

This level indicates the accuracy of the dates, locations, and boundaries available in the current corpus.

Source

General history of Africa, VI: Africa in the nineteenth century until the 1880s

A starting point for further exploration—not an exhaustive bibliography.

ResourcesMap
EmpireTrust average

19th century – 19th century

Zanzibar Commercial Empire

Zanzibar, Pemba, East African coast, and connected hinterlands

Listen
Compare
View in the constellation

The Zanzibar commercial empire was the Omani-led commercial system centred on Zanzibar and Pemba that expanded through plantation production, maritime treaties, customs administration, and caravan trade. Under Said bin Sultan, Zanzibar became a major emporium exporting cloves, ivory, slaves, rhinoceros horns, gum copal, and other goods while importing manufactured products from India, Europe, and the United States.

Territory · Empire

Continue exploring

Ask Uriti

  • How did the Zanzibar Commercial Empire empire rise and expand?
  • What role does Zanzibar Commercial Empire play in the Zanzibar region?
  • What is the link between Zanzibar Commercial Empire and East African slave trade?
  • About Zanzibar Commercial Empire: can you clarify “Zanzibar became a major East African commercial emporium”?

The Story

A commercial empire centred on Zanzibar

During the first half of the nineteenth century, Omani political and commercial interests shifted toward Zanzibar and Pemba and, indirectly, toward other East African coastal city-states. Said bin Sultan encouraged Indian enterprise and settlement, farming out Zanzibar’s customs collection to an Asian merchant by 1804 and attracting a substantial Asian residence in the capital by 1811. Asian merchants soon became customs agents, financiers, middlemen, and wholesale traders.

Said also introduced and expanded clove cultivation in Zanzibar. By 1850, the island held near-complete domination of the international clove market, while plantation production supplemented dhow and caravan commerce. Using slave labour on about forty-five plantations, Said was producing two-thirds of the 8,000 frasilas exported from Zanzibar by 1840; the extract defines a frasila as approximately 35 pounds.

Commercial treaties with the United States, Britain, France, and the German states strengthened Zanzibar’s international position. The 1833 treaty with the United States offered a five per cent duty on American imports and no duties on East African goods purchased by Americans, stimulating shipping and trade in ivory, gum copal, and cloves. British influence nevertheless increased through military support and diplomatic pressure, including the 1847 Hamerton Treaty restricting the export of slaves beyond the sultan’s East African dominions.

By the middle of the nineteenth century, Zanzibar had become the most important commercial emporium on the East African coast. Its system connected manufactured imports from India, Europe, and the United States with exports of cloves, ivory, slaves, rhinoceros horns, gum copal, and other goods. The extract presents this unequal exchange as enriching foreign merchants while contributing to the economic subordination and underdevelopment of indigenous East African societies.

Key Points

  • Zanzibar became a major East African commercial emporium
  • Clove plantations expanded through enslaved labour
  • Asian merchants gained a dominant economic position
  • Treaties connected Zanzibar to global markets
  • Trade produced unequal exchange and regional dependency

Trust

average

This level indicates the accuracy of the dates, locations, and boundaries available in the current corpus.

Source

General history of Africa, VI: Africa in the nineteenth century until the 1880s

A starting point for further exploration—not an exhaustive bibliography.

Continue the journey

Related Paths

Other paths related to this story.

  • Said bin SultanCharacter·19th century — 19th century