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Signing of the Treaty of Cession

When
6 August 1861
Where
Lagos Island
Part of
British Anti-Slave-Trade Bases Established at Lagos

Oba Dosunmu signed the Treaty of Cession on 6 August 1861, ceding Lagos Island to Britain under threat of bombardment.

The treaty granted Britain full dominion over Lagos Island to enable the Queen to defend inhabitants and end the slave trade. Dosunmu retained his title but was subject to English laws, marking the formal establishment of British bases.

Sources

  1. Lagos Treaty of Cession Wikipedia, revision of 2026-08-09

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.