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16th-19th century CEPeer-reviewed · 2 sourcesWell documented

The Atlantic Slave Trade Draws Millions of Captives From the Bight of Benin

The coastline of what is now southwestern Nigeria becomes one of the busiest embarkation zones of the Atlantic trade

On the timeline · around 16th-19th century CE · Slave Trade and ContactSlave Trade and ContactColonial NigeriaThe Atlantic Slave Trade Draws Millions of Captives From the Bight of Benin1725175017751800

Quick facts

Bight of Benin region
Modern Ghana, Togo, Benin, southwest Nigeria
Estimated transported from Bight of Benin
c. 2,340,000 people, c. 22% of the total trade
Nigerian organizing power
Oyo Empire, moved captives to coastal ports
Second Nigerian embarkation zone
Bight of Biafra (Igbo, Ibibio, Efik, Ijaw)

What happened

From the 16th through the 19th century, European traders embarked captives from the Bight of Benin, the stretch of West African coast spanning modern Ghana, Togo, Benin, and southwestern Nigeria, through ports such as Ouidah. Over the full period of the trade, roughly 2,340,000 people, about 22 percent of all Africans sent to the Americas, were transported from this single region. The Oyo Empire, whose territory reached the Nigerian side of this coastline, built the command structure needed to move captives from the West African interior down to these coastal ports, functioning as a central organizer within the wider system rather than a passive supplier. Further east along the Nigerian coast, the Bight of Biafra, drawing heavily on Igbo, Ibibio, Efik, and Ijaw communities, became a second major embarkation zone as the trade's geography shifted through the 18th century.

Why it matters

The volume of people taken from the Bight of Benin, close to a quarter of everyone forced across the Atlantic, made what is now southwestern and southern Nigeria one of the most heavily affected regions in the entire trade, and organizing states like Oyo grew wealthy and powerful by supplying that demand rather than only suffering it. That combination, immense human loss paired with local power built on the trade, left scars and hierarchies that outlasted the trade itself and shaped the region Britain would later colonize.

How we know

The regional volume estimate for the Bight of Benin comes from Trans-Atlantic Slave Trade Database figures cited in peer-reviewed population-genetics research on the region, and Oyo's organizing role in moving captives to the coast is separately documented in the historical record of the empire's trade infrastructure.

Sources

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Related timelines

  • The Atlantic Slave Trade → · The mechanics, ships, and abolition of the transatlantic trade that carried these captives are covered in full in the Atlantic Slave Trade timeline.
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