The imperial capital in both its forms, the archaeology of the ruined city at Ọ̀yọ́-Ilé, the palace and wall systems, the Aláàfin institution and the constitutional check the Ọ̀yọ́ Mèsì exercised over it.
The Yorùbá wey dem quote, the proverbs, oríkì, ẹsẹ Ifá, word list headwords, Odù names and citations dey exactly as the corpus record dem, for every language.
Ọ̀yọ́ dey refer to two city and one institution. Di first city, Ọ̀yọ́-Ilé, wey Hausa and European source dem still dey call Katunga, dey for di savanna south of River Niger and na him be di capital of Ọ̀yọ́ empire until dem leave am for di 1830s; now, na ruin wey dey inside one national park. Di second one, Ọ̀yọ́ Àtìbà, wey dem sometimes dey call New Ọ̀yọ́, na Aláàfin Àtìbà start am around one hundred and thirty kilometres go south for 1837, and na him be di Ọ̀yọ́ wey dey today. Di institution na di Aláàfin, di ruler of di two of dem.
Di reason why Ọ̀yọ́ dey very important pass as im size dey today na because na him be di only Yoruba state wey build big empire wey tey well well, and di constitutional arrangement wey dem use do am, where council fit force di ruler make im kill imself, na one of di political system wey special pass for West African history.
Aláàfin na short form of Aláwòfin or Onílé-Àfin, wey mean di owner or person wey dey stay inside palace, from ààfin, wey mean palace [S1]. So di title dey put power for di building itself instead of di person or territory, and dis one match how di office work: di Aláàfin dey mostly stay inside palace and im dey rule through officials wey dey waka on im behalf.
Di full formal title wey dem dey use today na Aláàfin of Ọ̀yọ́, wey dem dey call His Imperial Majesty, title wey dey show di imperial past instead of any current power pass di town and di area around am [S1].
Katunga na di Hausa way of calling di name of di old capital, and na dis form reach Europe through Clapperton and di Lander brothers, and na why nineteenth-century maps dey show Katunga for where tradition talk say na Ọ̀yọ́-Ilé.
Di site dey roughly around 8°58′N, 4°18′E, inside woodland savanna wey cross modern Ọ̀yọ́ and Kwara state boundary, and di official historical area cover almost three thousand hectares [S2]. For di middle of di eighteenth century when e reach im peak, di built city cover pass five thousand hectares, and im wall system dem, wey be five walls wey dem build between sixteenth and late eighteenth century, cover around fifty square kilometres [S3]. Di estimate of di population for di eighteenth-century city dey between sixty thousand and one hundred and forty thousand [S2][S3].
Dem record three main concentric circuits [S2]:
| Circuit | Circumference |
|---|---|
| Inner wall, wey enclose di ààfin | 7.5 km |
| Main outer wall | 18 km |
| Outermost wall | 28 km |
One report from 1829 describe di walls say dem high reach about twenty feet with deep ditch dem join am [S2]. Di way dem take build am na bank and ditch: dem dig ground from outside ditch throw am go up make internal wall, so dat di real height wey person wey wan attack go face na di ditch depth plus di wall height. Na dis be di standard fortification method for West African forest and savanna, and na di same method, for different levels, dem use build Sungbo's Eredo and di Ìbàdàn wall.
Five separate circuits wey dem build across two centuries dey show say di city dey always expand pass im own defence, and dis one na clear evidence of di growth wey di tributary economy bring.
Di ààfin complex dey inside di 7.5 kilometre inner boundary, while di market and many house dem dey outside am for area of about two thousand hectares [S3]. Dem build am with solid mud, straight-line shape, wey dem arrange as rooms for parallel lines round one courtyard or many courtyards. Dis buildings no leave many standing remains, but di mud wey melt still dey as low banks wey still show di ground plan, na why researchers still fit read and survey di site today [S3].
E good make person state di size clearly. Di New Ọ̀yọ́ palace as e dey for 1930s get thirty courtyards across seventeen acres, and di estimate for im Ọ̀yọ́-Ilé predecessor na say e fit reach pass one square mile [S3]. Di palace no just be place to sleep. Na whole walled area wey hold di ruler, im wives, di eunuch officials, di messenger dem, priests, clients and slaves, and e serve as di administrative center of di empire.
Di way dem plan di city spread out from di palace: roads run go outside like tyre spokes, pass through di town gates and become di routes wey lead go borders of di kingdom [S3]. Na dis be di classic Yoruba town pattern and Ọ̀yọ́-Ilé na im biggest example.
Archaeological work for di site don dey go on for pass forty years [S3], with excavation seasons wey dem record including 1981, 2002, 2004 and 2006, where dem see pot pieces, charcoal, ceramic plates and proof say people plenty well well across different ground levels [S2]. Di site now dey inside Old Ọ̀yọ́ National Park, after dem declare am as game reserve and den park after dem leave am [S2], wey protect am from people building house or farming there, but e no make work easy for there.
Wetin di archaeology prove na di size, how long e tey, and di order of di walls. Wetin e never resolve na di exact time dem start di town. Oral tradition, based on Samuel Johnson, talk say na Ọ̀rànmíyàn start Ọ̀yọ́, and di general date wey people dey use for di city as imperial capital na from fourteenth century [S2], but na traditional date, no be date wey archaeology dig out, and make people treat am like dat.
Di fall of di empire take long time, and as dem leave di capital na him be di end. After military defeat for Ìlọrin, where Aláàfin Olúewu die, dem no fit hold di city again. Di people scatter: some go south go wetin become New Ọ̀yọ́, and others go outside to Kíṣí, Ìgbòho and Ìlọrin [S2]. Dem dey put di date as 1835, sometimes 1837 depending on whether di reference na di final defeat or di time wey dem finish di movement [S2][S3].
Two of those destinations dey important for di rest of di gazetteer. Kíṣí and Ìgbòho na Ọ̀yọ́ towns already and dem be don serve before as interim capitals during di sixteenth-century Nupe interregnum. Ìlọrin na di town wey defeat Ọ̀yọ́ and turn to emirate, and Ọ̀yọ́ people go there too.
Di Aláàfin and di Ọ̀yọ́ Mèsì together form di central government [S1]. Below dem, local rule dey for hand of ọba, crowned rulers, or baálẹ̀, uncrowned heads, wey hold dia positions under tributary relation to di Aláàfin and dey owe am defined obligations in exchange for im rule and protection [S1].
Di Ọ̀yọ́ Mèsì na di council of seven non-royal hereditary chiefs, wey di Bàṣọ̀run dey head, and na di body wey select and install each Aláàfin [S4]. Di clear constitutional function wey dem get na to check di despotic authority of di ruler wey dem crown [S4]. Di stated duty of di Bàṣọ̀run's na to protect di unwritten constitution and move against di Aláàfin when e no fit rule again, whether through weakness or through tyranny [S4].
Di mechanism na calabash of parrot eggs. Di Bàṣọ̀run go present di Aláàfin with covered calabash wey get parrot eggs inside, and di presentation get only one meaning: say di council don reject am, and e must take im own life [S4]. Di rejection no be personal matter against di ruler. Di Aláàfin, im eldest son di Àrẹ̀mọ, and di Aláàfin own counsellor inside di Ọ̀yọ́ Mèsì, di Àṣàmú, all of dem go die, so dat di whole senior level of government go renew at once [S4].
Three things dey follow from dat design, and dem make sense to state separately because people dey usually mix dem together.
First, dis one na real constitutional check with heavy sanction, inside system wey no get written constitution and no standing way to appeal. Second, e costly to use, because e dey kill three people including di heir, and dis one create strong reason why dem no go just use am anyhow. Third, di rule say di Àrẹ̀mọ must die with im papa mean say di heir apparent get permanent interest make im papa survive politically, and e also mean say e no fit just wait make di reign end.
Di balance of power still work di oda way too. Di Ògbóni society, wey be di council of elders wey hold earth-cult authority, fit intervene against di Ọ̀yọ́ Mèsì, so dat check dey on top di Bàṣọ̀run imself too.
Di most famous failure of di system na Bàṣọ̀run Gáà for di eighteenth century, wey use di mechanism repeatedly to remove Aláàfin one after di oda until Abíọ́dún destroy am. Yoruba tradition dey remember Gáà as di typical example of subject wey get too much power, and di phrase about am don enter proverb.
Di current holder na Ọba Abímbọ́lá Akéem Owóadé I, wey dem install for 2025 as di forty-sixth Aláàfin, after Ọba Lámídì Adéyẹmí III, wey reign from 1970 to 2022 [S1][S5]. Di count dey go back through di traditional list reach Ọ̀rànmíyàn, and just like di Ifẹ̀ list, di early part na dynastic tradition instead of dated history.
Di fifty-two-year reign of Adéyẹmí III na di relevant modern fact. Na im be di most politically assertive Yoruba traditional ruler for im time, e spend plenty of am dey drag publicly with different Ọ̀ọ̀ni over who high pass for Yoruba traditional hierarchy, and im position na say historical political authority for Yorubaland pass through Ọ̀yọ́. Di Ifẹ̀ position na say ritual seniority come before political power. None of di claims don resolve and both sides dey actively maintain dia own.
Aláàfin Àtìbà Atóbàtẹ̀lẹ́ found di present Ọ̀yọ́ for 1837 for place wey settlements already dey, among dem Àgó Ọjà, and di modern town still dey use dat name as Àgó d'Ọ̀yọ́, wey mean say di camp don become Ọ̀yọ́ [S5]. To tie di existing landholders join di new arrangement, e give di title of Àṣípa to di Ọjà family, for wetin come be Ìsàlẹ̀ Ọ̀yọ́ now, and di Aláàfin palace still stand beside dem till today [S5].
Dat founding move show wetin dey common dat period. Àtìbà no conquer di place; e negotiate am, and e pay with title. Dat same pattern to buy incorporation with chieftaincy title dey repeat across di nineteenth-century refoundations.
Àtìbà oda important act na di sharing of military authority commot from di capital wey e no fit defend again. E recognise Ìbàdàn as di military arm and e give di Aàrẹ Ọ̀nà Kakanfò title to Kúrunmí for Ìjàyè, wey divide command between two centres. Di arrangement hold only reach 1860, when Ìbàdàn and Ìjàyè go war over succession after im death, and di Ìjàyè war destroy Ìjàyè completely.
New Ọ̀yọ́'s palace, di thirty courtyards across seventeen acres wey dem record for di 1930s [S3], na di largest surviving traditional palace complex for Yorubaland and e still be di ceremonial centre of di town.
Ọ̀yọ́ town na headquarters of Ọ̀yọ́ West and di centre of local government areas cluster for Ọ̀yọ́ State, market and agricultural town with long-standing reputation for leatherwork, calabash carving and cloth. E no be major industrial or administrative centre; Ìbàdàn, di town wey Ọ̀yọ́ create as im war camp, take dat role and e never return am.
Old Ọ̀yọ́ National Park cover di ruined capital and nearby territory across Ọ̀yọ́ and Kwara states. Di site dey Nigeria tentative list for UNESCO World Heritage inscription and dem never inscribe am. Dem never dig di ground reach wetin im importance deserve, access to di place hard, and e dey face di same pressure wey dey affect all protected areas for Nigeria.
Guide to the gazetteer, what each file covers, the argument that runs through the section, and how to read it in order or by interest.
The city the Yoruba world treats as its origin point, its Ọ̀ọ̀ni institution and ruling houses, its quarters, its groves and sacred sites, the Ọ̀rànmíyàn staff, and the Modáké̩ké̩ question.
How an Ọ̀yọ́ military outpost passed from Àfọ̀njá to a Fulani emirate inside the Sokoto Caliphate, what the sources actually establish about that sequence, and the four positions people hold about Ìlọrin's identity today.
The towns of the old Ọ̀yọ́ heartland and its northwestern frontier, Ògbómọ̀ṣọ́ under the Sòun, and the Òǹkò country of Ìsẹ́yìn, Ṣakí, Ìgbòho, Kíṣí and Òkèhò.
What a Yoruba town is made of, the palace at the centre, the market before it, the wards and compounds around it, and the wall and ditch that closed it in.
How Ọ̀yọ́ rose to dominate the western Yoruba region and beyond, the constitutional machinery that constrained its king, the cavalry that made it work, and why both eventually failed.