The Nanban Period: Portugal and Japan, 1543–1647
What was the Nanban period?
The Nanban period was the roughly hundred-year encounter between Japan and Portugal that ran from 1543 to 1647 — the span the Japanese remember through the word nanban, “southern barbarian,” their name for the Europeans who arrived by sea from the south.
It opens with the first Portuguese landfall in 1543 and closes with Portugal’s last attempted embassy of 1647. In between, Japan passed through its violent unification under Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu, while European ships, guns, goods, and the Christian faith flowed in through the ports of Kyūshū — until the shogunate, under the sakoku edicts, narrowed foreign contact to a few tightly controlled channels. The period is defined by the meeting of two worlds that had never before been in contact, and by the two forces that drove that meeting: commerce and religion.
Full timeline: A Complete Timeline of Portuguese-Japanese Exchange, 1543–1650
When did the Portuguese first arrive in Japan?
The first Portuguese reached Japan on 23 September 1543, making landfall at Cape Kadokura on the island of Tanegashima, off the southern tip of Kyūshū.
They did not arrive on a ship of their own. The three men — António da Mota, Francisco Zeimoto, and António Peixoto — were passengers aboard a Chinese trading junk bound for Ningbo when a storm blew it off course onto the Japanese coast. With no common language, first contact was brokered by the junk’s Chinese captain, the merchant-pirate Wang Zhi, who conversed with a local man by writing Chinese characters in the sand.
Some early chroniclers dated the event to 1542, but the Japanese record Teppōki (“Chronicle of the Musket”) fixes it to 1543. The later boast by the writer Fernão Mendes Pinto that he was among the first arrivals is generally dismissed by historians as invention.
How did the guns the Portuguese brought change Japan?
The castaways carried European matchlock arquebuses — a technology Japan had never seen — and within a generation these guns had transformed how the country’s civil wars were fought.
The young lord of the island, Tanegashima Tokitaka, bought the weapons at great cost and set his swordsmiths to reverse-engineer them. Production spread so fast through the war-torn provinces that firearms became known across Japan as tanegashima, after the island where they had first come ashore. Mass-produced and rapidly adopted by the warlords, the gun reshaped battlefield tactics during the Sengoku era and made the technical goods the Europeans carried — especially lead and the saltpeter for gunpowder — objects of intense strategic value.
Full article: Tanegashima — First Contact and the Gun That Changed Japan
What did the Portuguese come to Japan for — trade or religion?
Both — and in the Nanban century the two were inseparable: the Portuguese came to profit from the silk-and-silver trade, the Jesuits came to win souls, and each depended on the other.
The commerce and the mission arrived together and traveled together. Portuguese merchants relied on the Jesuits as interpreters and go-betweens, while the missionaries relied on the merchants’ ships for passage and on the lure of trade to open doors that faith alone could not. Many daimyō tolerated — or embraced — Christianity in their domains chiefly to attract the Portuguese “Great Ship” and the wealth it carried. Religion and trade were, in effect, two sides of the same arrival, which is why the crackdown on one eventually doomed the other.
Full article: The Christian Century in Japan
What was the Nanban trade?
It was a hugely profitable arbitrage: the Portuguese bought Chinese silk cheaply at Macau, sold it in Japan for silver, and carried that silver back to China — the profit on a single voyage could exceed 100%.
The trade exploited a political gap. After coastal raiding by the wakō, Ming China had banned direct commerce with Japan — yet Japan was producing perhaps a third of the world’s silver, silver-hungry China craved it, and Japan craved superior Chinese silk. From their base at Macau (secured in 1557), the Portuguese slipped into that gap as the principal middlemen. The exchange was carried by the annual nau do trato or “Great Ship” (the kurofune, “Black Ship”), a colossal carrack whose arrival at Nagasaki was treated almost as a wonder and immortalized in the nanban byōbu folding screens. Alongside silk and silver moved firearms, lead, saltpeter, and exotic luxuries — and, darkly, a traffic in enslaved Japanese people.
Full guide: The Nanban Trade — the commerce in eight questions
How did Christianity reach Japan, and how far did it spread?
The Jesuit mission opened with the arrival of Francis Xavier in 1549 and grew, over 60 years, into a church of perhaps 300,000 Japanese Christians at its height around 1614.
Xavier was captivated by the Japanese — he called them “the best who have as yet been discovered” — but the early mission struggled with the language barrier. The turning point came with the Visitor Alessandro Valignano, who from 1579 imposed a policy of cultural accommodation: missionaries were to learn Japanese, observe local etiquette, and earn respect on Japanese terms. The Jesuits pursued a deliberately “top-down” strategy, converting the daimyō in the knowledge that a lord’s baptism would be followed by the mass conversion of his subjects. With European priests never numbering more than about 140, the mission leaned on Japanese catechists and brothers, on seminaries, and on a printing press introduced in 1590. At its peak the Kirishitan made up an estimated 1.5–2% of Japan’s population.
Full article: Number of Christian Converts in Japan, 1549–1700
Who were the Christian daimyō?
A number of prominent lords — the Kirishitan daimyō — converted and carried their whole domains with them, reshaping the religious map of Kyūshū and the Kansai.
The most consequential of them turned Kyūshū into the heartland of Japanese Christianity:
- Ōmura Sumitada (Dom Bartolomeu): the first Christian daimyō, baptized in 1563; he converted tens of thousands of his subjects and opened — then effectively ceded — the port of Nagasaki to the Jesuits.
- Ōtomo Sōrin (Dom Francisco): the powerful “King of Bungo,” who protected the Jesuits for decades before his own baptism in 1578, making his domain a center of Jesuit hospitals and schools.
- Arima Harunobu (Dom Protásio): whose baptism sparked the mass conversion of the Shimabara peninsula, a Christian stronghold until the rebellion of 1637.
- Takayama Ukon (Dom Justo): the most celebrated of the Christian lords, who gave up his lands and rank rather than renounce his faith and died in exile in Manila in 1615.
- Konishi Yukinaga (Dom Agostinho): a leading general under Hideyoshi who commanded the vanguard of the invasion of Korea and was executed after Sekigahara.
Why did the Nanban trade and the Christian mission matter to Japan’s warlords?
Because in the middle of a civil war the Nanban trade offered a warlord exactly what he needed most — modern weapons and immense wealth — and access to it could be bought simply by tolerating the priests.
During the Sengoku Jidai, Japan was fractured by endless conflict, and the arrival of the Great Ship was a matter of both survival and ambition. The Portuguese supplied firearms, lead, and saltpeter that Japan could not produce in sufficient quantity, and the silver-and-silk trade generated fortunes that funded armies and the great castles of the age. Kyūshū daimyō competed fiercely to lure the ship into their own harbors — and since the merchants moved in the Jesuits’ company, protecting the mission became a way to secure the trade. As the country was reunified, its rulers grasped that whoever controlled the Nanban commerce controlled Japan’s economic destiny, which is why Hideyoshi seized Nagasaki and why the Tokugawa watched the trade so jealously.
When and why did Japan turn against the Portuguese?
Japan turned against them in stages between 1587 and 1639, driven above all by the fear that Christianity was the advance guard of European conquest — and by the discovery that the Protestant Dutch could supply the same goods without the priests.
The reversal came in a cascade of escalating measures:
- 1587: fresh from subjugating Kyūshū, Hideyoshi’s edict ordered the missionaries out — alarmed by forced conversions, the destruction of temples and shrines, and the Portuguese trade in Japanese slaves — though, dependent on the trade, he did not enforce it.
- 1596–1597: the San Felipe incident, in which a shipwrecked Spanish pilot reportedly boasted that missionaries were the vanguard of invasion, drove Hideyoshi to crucify the 26 Martyrs of Japan at Nagasaki.
- 1614: Tokugawa Ieyasu, warned by Protestant advisers such as William Adams and shaken by domestic scandal, issued the definitive expulsion edict banning Christianity outright.
- 1637–1638: the Shimabara Rebellion, a vast uprising fought under Christian banners, convinced the shogunate that the Portuguese were fomenting revolt.
- 1639: the sakoku edict of that year banned Portuguese ships for good; when a Macau embassy came to plead in 1640, 61 of its members were executed.
The motives were consistent throughout: Christianity was seen as a subversive loyalty owed to a foreign God and Pope; the faith threatened the shogun’s authority and the traditional order; and once the Dutch offered silk and silver with no interest in conversion, Japan no longer needed the Portuguese at all.
Full guide: The Sakoku Edicts — the closing of Japan in questions and answers
What did the Nanban period leave behind?
Though the mission was crushed and the Portuguese expelled, the Nanban century left deep marks on Japan — in its wars, its language, its kitchens, and its art — and it set the terms of the isolation that followed.
The gun remade Japanese warfare. The encounter left a lasting imprint on the language, in Portuguese loanwords still in daily use, and on the table, in dishes such as tempura and the sponge cake castella that descend from Iberian cooking. The nanban byōbu screens preserved the image of the black ships and their exotic crews for later centuries. And the period’s violent end shaped what came next: with the Portuguese gone and Christianity driven underground, the Tokugawa confined the Dutch to the tiny island of Dejima in Nagasaki, keeping a single narrow window on the West that would remain Japan’s chief link to Europe for more than 200 years.
Full article: From Tempura to Castella — the Culinary Legacy of the Nanban