Samuel Ajayi Crowther (c. 1809–1891), Yoruba linguist, translator and the first African bishop of the Anglican Church. (Wikimedia Commons, public domain)
In March 1821, slave raiders came to a town called Osogun, in the Egba country of what is now western Nigeria. They took the whole village. Among the captives were a woman named Afala, her toddler son, and her boy of about twelve, whose name was Ajayi. His father was most likely killed in the attack. Ajayi was sold several times before he was bought by Portuguese traders and put on board a ship bound for the Americas.
That ship never crossed the Atlantic. Before it left the coast it was boarded by a Royal Navy patrol, part of the West Africa Squadron enforcing Britain's ban on the slave trade, and the captives were taken off and landed at Freetown, Sierra Leone. Ajayi's family were among them.
What makes this more than one story in millions is what came next. The boy who had never been taught to read or write any language, in any script, learned English from zero in a mission school. Within a few years he was one of the first students at Fourah Bay College, studying Latin and Greek. By 1843 he had published the first grammar and vocabulary of his own language. Before he died he had translated the Bible into Yoruba, written the first primers for Igbo and Nupe, and been consecrated as the first African bishop in the Anglican Church.
Along the way he did something no learner should skim past: he gave a spoken language its written form.
Osogun, 1821: A Lost Language Problem in Reverse
The details of the raid come from Crowther's own account. In a letter written in 1837 to the Rev. William Jowett, secretary of the Church Missionary Society, he set out the day that split his life in two:
"I suppose sometimes about the commencement of the year 1821, I was in my Native country, enjoying the comforts of father and mother, and the affectionate love of brothers and sisters. From this period I must date the unhappy, but which I am now taught, in other respects, to call blessed day, which I shall never forget in my life … it was the day in which I was violently turned out of my father's house, and separated from relations; and in which I was made to experience what is called to be in slavery." — Samuel Ajayi Crowther, letter to the CMS, 1837
Yoruba was, in the 1820s, an unwritten language. This is the fact that sits behind everything else in this story. Yoruba speakers numbered in the millions, and there was no agreed alphabet, no spelling, no printed page. There was a form of Yoruba written in Arabic script, called Ajami, attested from the seventeenth century in personal notes, poetry and Islamic verse — but it was idiosyncratic, never standardised, and not socially spread. His language could be spoken and sung and recited. It could not be posted on a wall.
So when Crowther was taken across the water, he was, in the most literal sense, illiterate in his own language — as most Yoruba speakers were, because writing it had not been done yet. Learning English meant learning literacy itself.
Freetown: Learning to Read from Nothing, in a Second Language
In Sierra Leone the liberated Africans were settled by the British and cared for by Christian mission societies. Crowther was taken in by the Church Missionary Society and taught to read and write English. The account of his progress is striking for its speed: he was sent to school, and was soon reading the Bible with ease.
On 11 December 1825 he was baptised by John Raban and chose his new name for the reason most converts of that era did — he took the name of a person he had reason to admire. Samuel Crowther was the vicar of Christ Church, Newgate Street, in London, and one of the founders of the mission that had taught him.
By then he was already collecting languages like other boys collected string. In 1826 he was sent to a school in Islington, connected to the church of St Mary's, and returned to Freetown a year later to become one of the first students admitted to Fourah Bay College, the new CMS school opened to train able Sierra Leoneans. There he studied the classical curriculum — Latin and Greek — and alongside it Temne, the language of the people around Freetown. He stayed on to teach.
Note the shape of his education at this point, because it is the reason he later became useful in a way nobody planned. A gifted student who learned Latin and Greek could become a schoolmaster. A student who learned Latin, Greek and an African language the mission needed could become a linguist — and in 1841, the CMS needed one.
The Niger Expedition: Where the Work Actually Started
In 1841 Crowther joined the Niger Expedition as the missionary representative alongside the German linguist J. F. Schön. The expedition's aims were commercial, agricultural and religious all at once, and Schön and Crowther were expected to learn Hausa for use in the interior. Crowther worked on the expedition's journals, gathered vocabulary, and came back with an account of the journey that impressed everyone who read it — enough that the CMS decided to prepare him for ordination.
He was ordained a priest in London on Trinity Sunday 1843. It was, as the historian Andrew Walls puts it, a landmark for the Anglican ministry: an African clergyman, with an African congregation in view, ordained to work in Africa. Then he went back, and did the thing that had never been done.
Giving Yoruba a Written Form
Crowther returned to West Africa and, with Henry Townsend, opened a mission at Abeokuta in 1846 — in Egba country, the homeland he had been taken from twenty-five years earlier. He found relatives there. His mother, Afala, was among his first converts, taking the name Hannah; he baptised her himself.
But the language work came first, and it remains his monument.
In 1843 he published A Vocabulary of the Yoruba Language, to which are prefixed the grammatical elements of the Yoruba language — grammar and word list together, the first real description of the language in print. In 1852 came a much larger vocabulary that also collected a substantial number of Yoruba proverbs.
That second decision deserves a pause. Proverbs are not decoration in Yoruba. They are the compressed, idiomatic core of how people speak and argue — the units a learner meets on the street and never finds in a beginner's book. Where a lesser linguist would have written down nouns and verbs, Crowther collected the phrases his people actually said.
And he had to invent the writing, not just describe it. His system used the Latin alphabet with underdots and tone marks. Yoruba is a tonal language with open vowels, so the orthography needed marks for the open ẹ and ọ, and for the high, mid and low tones. In 1875 the Church Missionary Society held a conference on Yoruba orthography which produced a standard based on that work — a standard that held, with adjustments, for the next seventy years and underlies what is written today. Modern Yoruba uses dots rather than subscript lines for the open vowels, a change adopted in printing practice from 1966.
The stakes are easy to miss. Standard Yoruba — the written, school-taught, broadcast version of a language spoken today by somewhere around 50 million people — is usually dated to the 1850s, precisely because Crowther published a grammar and began translating the Bible into it. Written Yoruba, the shared version that a Yoruba speaker from Lagos and a Yoruba speaker from Ibadan can both read, took its shape from a man who had to leave home to learn what writing was, and who came back to give it to the language he had lost.
Bible, Igbo, Nupe: Learning Languages as an Adult, in the Field
After the expedition years the pattern is relentless, and it is all adult learning. Nothing he did linguistically after 1843 came from a classroom.
- Yoruba Bible. He began translating and compiling a Yoruba dictionary, and supervised the Yoruba Bible (Bibeli Mimọ), completed in the mid-1880s. His translation set new standards for later African Bible translations.
- Book of Common Prayer, in Yoruba, following the grammar.
- Igbo. After the Niger expeditions of 1854 and 1857 he published an Igbo primer in 1857 — among the first printed materials in the language.
- Nupe. A Nupe primer in 1860, then a full grammar and vocabulary of Nupe in 1864.
- Hausa, from the 1841 expedition onward, alongside the trade languages of the Niger.
He was also writing journals, expedition reports and a charge to his clergy — a working writer in a language he had learned from nothing as a teenager. For a reader today, the most moving passage of his own writing is not about grammar at all. It is his account of the first time he preached in Yoruba:
"Although it was my own native language, with which I am well acquainted, yet on this occasion it appeared as if I were a babe, just learning to utter my mother-tongue. The work in which I was engaged, the place where I stood, and the congregation before me, were altogether so new and strange, that the whole proceeding seemed to myself like a dream … At the conclusion of the blessing, the whole church rang with ke oh sheh — so be it, so let it be!" — Samuel Ajayi Crowther
Read that again as a language learner and you will recognise the sensation exactly. He was not translating and he was not hesitant — the grammar was his own. He was simply speaking his first language for the first time in a new register, in front of an audience, for a purpose it had never carried for him. It felt like being a beginner. It usually does.
Bishop of the Niger, and the Men Who Took It Away
In 1857, with the backing of the CMS secretary Henry Venn, Crowther opened the Niger Mission. Its staff were African, most of them Sierra Leoneans like himself, an attempt to build a church that was, in Venn's phrase, self-supporting, self-governing and self-extending. It was a striking experiment, and it depended on one man being acceptable to the London committee, the colonial authorities and the local chiefs simultaneously.
Venn wanted more. He proposed Crowther for consecration as a bishop; Crowther initially refused, and Venn pressed him with an appeal that has survived in the records: "My son Samuel Ajayi, will you deny me my last wish before I die?"
On St Peter's Day, 29 June 1864, at Canterbury Cathedral, Charles Longley, Archbishop of Canterbury, consecrated him bishop. The licence from Queen Victoria appointed him "Bishop of the United Church of England and Ireland in the said countries in Western Africa beyond the limits of our dominions." He was the first African bishop in the Anglican Church. He later received an honorary Doctor of Divinity from Oxford, and on a visit to Queen Victoria he read the Lord's Prayer to her in Yoruba — which, by the account that has come down to us, she described as soft and melodious.
Two things are true of the end of his life, and both belong in the story.
First, he was superb at the job in exactly the way his letters and reports show: he travelled the Niger, ordained clergy, took episcopal functions where the Bishop of Sierra Leone could not reach, and pioneered an early form of Christian-Muslim dialogue in the interior. In 1876, when a local chief took him hostage and demanded 200 slaves for his release, the former slave answered that he would rather die than see one more African taken into slavery — calling it, in his own words, "a great abomination in the sight of God."
Second, from the 1880s the mission was dismantled around him. Racial attitudes in Britain had hardened, Venn was dead, and younger European missionaries questioned the competence and conduct of Crowther's African staff. The pressure came in the least dramatic form imaginable: financial controls, transfers, suspensions, Europeans appointed over his men. In 1890 two European missionaries accused a number of African pastors of fraud, ignorance and immorality and held the bishop responsible. He was sidelined and his bishopric placed under European supervision. He died of a stroke in Lagos on 31 December 1891, aged 82. A European bishop succeeded him.
One part of the mission survived: the Niger Delta Pastorate Church, kept autonomous under his son, Archdeacon Dandeson Coates Crowther. Crowther's daughter Abigail had married Thomas Babington Macaulay, and their son — his grandson — was Herbert Macaulay, a founder of Nigerian nationalism. In 1976, after a redevelopment order threatened the Ajele Cemetery, his remains were exhumed and reburied in an elaborate ceremony, with a cenotaph at the Cathedral Church of Christ in Lagos. The Church of Nigeria keeps his feast on 31 December.
What a Learner Can Take from Crowther
He was not a pure autodidact — mission schools taught him, and he was candid about that. But the useful half of his education was self-directed, adult, and improvised in the field, and it is full of things a modern learner can copy.
- Learn the language you need, not the language on offer. He was taught Latin and Greek because that was the curriculum. He became indispensable because he added Temne, Hausa, Igbo and Nupe — the languages the work actually required. Purpose-directed vocabulary beats prestige vocabulary.
- Collect chunks, not just words. His 1852 Yoruba vocabulary included a large number of proverbs. He was recording the fixed multi-word units that carry meaning and idiom, because he needed to speak like his people, not like a dictionary.
- Write things down for other learners. Grammar, vocabulary, primer, translation — the same knowledge restated four different ways. Explaining a language to others is the deepest retrieval practice there is, and it is the reason a self-taught learner's notes are usually better than any textbook they could have bought.
- Expect your mother tongue to feel foreign in a new register. His own account of preaching in Yoruba is the best description anyone has written of what happens when you use a familiar language for an unfamiliar purpose. It feels like starting over. It is not.
- Build something the language can live in. He did not just learn Yoruba. He created the conditions in which millions of other people could read and write it. The strongest reason to learn a language is not personal fluency; it is what you intend to do with it.
There is one more thing in his story worth keeping, and it is not a technique. Ajayi lost his language, his name, his family and his country in a single morning at the age of twelve, and spent the rest of his life going back. He learned to read in a foreign script so that he could write his own tongue down, and he spent forty years at it — grammar, vocabulary, proverbs, primers, Bible — while the institution he served quietly turned against him. He was still working at it when the stroke came. That is what a language life actually looks like when you take the long view: not a talent, and not a test, but a project you keep showing up to for as long as you can.