A Yoruba war camp that outgrew every African peer by area
Ibadan, capital of Nigeria’s Oyo State, holds about 4.3 million in its metro area across 3,080 square kilometres—the country’s largest city by land. At independence in 1960 it was Nigeria’s biggest city and Africa’s second after Cairo. The UN still ranks it among sub-Saharan Africa’s fastest growers.
The name from “Eba-Odan”—by the edge of the meadow—fits a foundation in 1829 amid Yorubaland’s upheavals, when old centres like Oyo-ile and Owu fell and Abeokuta and New Oyo rose. Tradition credits Lagelu with a war camp for Oyo, Ife, and Ijebu fighters on hills 160–275 metres high at the forest fringe—ideal for defence and forest–savanna trade. Nicknamed idi-Ibon, “gun base,” it remained martial into the 1890s and, between the 1860s and 1890s, headed an empire across much of northern and eastern Yorubaland.
Unlike hereditary Yoruba kingships, Ibadan ran as a military republic with four chiefs—three open to freeborn men, one reserved for women—drawing derision elsewhere even as martial success unlocked mobility. Refugees from northern Oyo swelled the sanctuary after Fula raids; Ibadan’s armies defeated Sokoto Caliphate expansion in 1840. Missionaries David and Anna Hinderer founded a CMS station in 1853. A British protectorate treaty followed on 15 August 1893; cocoa later made the city a bulk-trade hub, and in 1939 it became headquarters of the Western Provinces.
Geography still shapes the megacity: five draining rivers including Ogunpa, tropical wet-and-dry climate with about 1,230 millimetres of rain, and sprawl from roughly 40 square kilometres built-up in the 1950s toward 250 by the 1990s. Dugbe hosts banks and Cocoa House—often cited as Nigeria’s and West Africa’s first skyscraper. UNESCO named Ibadan a Learning City in 2016; it ranks high in West African tech-startup indices even as eleven local governments wrestle with metro scale.
Source: Ibadan
