Before 1861, Abeokuta was one of the wealthiest self-governing polities on the West African coast. The Egba United Board of Management (est. 1865, under G.W. Johnson "Reversible") ran its own customs on the Ogun River at Aro, taxed palm oil going downstream to the lagoon, and traded directly with Liverpool and Bremen houses through Egba-Yoruba middlemen at Ebute Metta and Badagry. The revenue paid the *Alake* Okukenu's court, the Ogboni, the Egba militia, and the CMS mission press at Ake that printed *Iwe Irohin*.
The 1861 annexation of Lagos changed the geography of money. Acting Consul William McCoskry and Commander Norman Bedingfield presented Oba Dosunmu with the Treaty of Cession on 6 August 1861; Britain took possession of Lagos Island the same day. From that moment every canoe leaving the Ogun River for the Atlantic passed under a British customs flag at Lagos Customs House (opened 1862). John Hawley Glover — first as *Colonial Secretary* (1863), then as Administrator of Lagos (1866–72) — is the man who turned that geography into a weapon.
## The blockade, 1863 → 1872
Glover's method was not a formal siege. It was three overlapping instruments applied in sequence:
- Customs re-routing (1863–65). Every duty formerly collected by the Egba at Aro was now collected — again — at Lagos Customs House on arrival. The palm-oil trader paid twice. Egba revenue collapsed within eighteen months.
- The Ijebu closure (1865, 1867, 1872). Glover paid the Awujale of Ijebu and the Remo chiefs a subsidy to close the Ijebu roads to Egba caravans, cutting the alternative eastern route to the Lekki lagoon. The Egba could ship only through Lagos — and pay Lagos duties — or not at all.
- The 1867 Ifole and the pretext (13 October 1867). When the Egba, led by the *Ogboni* and backed by *Alake* Okukenu, expelled the European missionaries and destroyed the CMS press at Ake, Glover treated it as a breach of treaty and formally closed the Ogun River to Egba trade. The blockade lasted, in varying intensity, until Glover's recall in 1872 and was only partially lifted under his successors.
By 1872 Abeokuta's cash economy was in ruin. The Egba United Board of Management dissolved in 1874. The Egba court survived — *Alake* Okukenu reigned until 1877 — but the fiscal base that had made Egba independence real was gone. When Lugard's forces returned in the 1890s, and again in 1914, they were negotiating with a polity that had already been financially disarmed twenty years earlier. The Egba United Government's 1898 charter, and its 1914 abolition after the Adubi (Ijemo) Rising of 1918, are the political aftershocks of a customs decision taken at Lagos Customs House in 1863.
## Why this matters
The blockade is the clearest 19th-century case of *fiscal conquest* on the Nigerian coast: no battle, no formal annexation, no flag raised over Abeokuta — only the re-routing of a river's revenue through a foreign customs house. It is the template Britain would apply, with variations, to Jaja of Opobo (1887), Nana Olomu of Itsekiri (1894), and the Aro (1901–02). See also How the currency fell before the flag and The Bombardment of Lagos.