Map of 1827

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The primary and secondary sources do not refer to the activities of Ilorin capturing specific places, although slave raiding must have been occurring regularly. In Egbaland, the Ijebu army engaged “in a conflict between the Egba Gbagura town of Orun and neighbouring Idomapa.” However, many Egba towns realized that no help was coming from Oyo and no longer fell under Oyo control. Otherwise, Dahomey continued to undermine Oyo through its constant slave raiding in Mahi territory, including the destruction of Doissa.

In this year, there may have been a lull in inland raiding as slave trading activities declined slightly at the coast. Only eleven slave ships departed, including seven for Brazil and four that were taken to Sierra Leone. Documented totals reached just over 4,000, while estimates were not much higher.

For citations see: Henry B. Lovejoy, "Mapping Uncertainty: The Collapse of Oyo and the trans-Atlantic Slave Trade, 1816-1836," Journal of Global Slavery 4, 2 (2019): 127-161. (Open source access).


Documented Slave Voyages in 1827

Voyage ID Name Departure Arrival Individuals
639 Segunda Rosália (1827) Lagos Brazil 257
642 Veloz (1827) Unspecified Brazil 352
645 Ceylon (1827) Unspecified Brazil 352
3002 Unspecified (1827) Lagos Brazil 381
3004 Unspecified (1827) Lagos Brazil 381
48682 Silveira (1827) Unspecified Brazil 490
900130 General Almeida (1827) Unspecified Brazil 449
2968 Vênus (1827) Ouidah Sierra Leone 191
2970 Dois Amigos (1827) Badagry Sierra Leone 317
2977 NS da Conceição de Maria (1827) Ouidah Sierra Leone 232
2983 Henriqueta (1827) Lagos Sierra Leone 569

*Ship totals with the same number based on imputted data. See Voyages: The Trans-Atlantic Slave Trade Database (