Nagasaki: How a Handful of Fishermen’s Huts Became the Trade Capital of the World

If you had sailed into the bay that would become Nagasaki in, say, 1560, you would have found nothing worth writing home about. A scattering of wooden shacks on a narrow, rocky point of land. Fishing nets drying in the salty air. A few hundred souls who made their living pulling mackerel and sea bream from waters that, on a clear day, reflected the wooded hills rising steeply on every side. The name itself, Nagasaki, the Long Cape, was merely descriptive. It was a geographical footnote, the kind of place that existed on no map because no mapmaker had ever seen a reason to go there.

Thirty years later, this same harbour would be the terminus of the most profitable maritime trade route on the planet. Its population would swell from a few hundred to tens of thousands. Its streets would be laid out in European grids. It would have churches and hospitals, a printing press and a central plaza, fortified walls bristling with artillery. Portuguese, Chinese, Japanese (and the occasional stray Spaniard) would jostle in its markets, haggling over silk and silver in a babel of languages that required interpreters. The Jesuits would call it the Rome of Japan. The merchants would simply call it rich.

The transformation of Nagasaki from nowhere to the nexus of global commerce is one of the most compressed and extraordinary stories of the early modern world. It is a story driven not by grand historical forces, though those play their part, but by a handful of individuals, a desperate warlord trying to survive, a group of Jesuit missionaries with ambitions that dwarfed their numbers, and Portuguese merchants who had stumbled upon the most lucrative arbitrage opportunity in the history of trade. Their motives were rarely aligned, frequently contradictory, and occasionally catastrophic. But for roughly seventy years, between the opening of the port around 1571 and the final expulsion of the Portuguese in 1639, their entangled ambitions produced something genuinely unprecedented: the first city in East Asia built specifically for a global economy.

This is the story of how it happened, and why it couldn’t last.

The Problem of Harbours

To understand why Nagasaki was built, you first need to understand the problem it was built to solve.

By the late 1550s, Portuguese merchants had been trading with Japan for roughly fifteen years. The business was staggeringly profitable. China wanted Japanese silver. Japan wanted Chinese silk. The Ming dynasty, in one of those periodic fits of policy that make economic historians weep, had banned all direct trade with Japan, largely because of the wakō, the pirate fleets that had terrorised Chinese coastal cities for decades. The pirates were a mixed crew of Japanese adventurers and Chinese smugglers, and Beijing’s solution was characteristically blunt: if the Japanese wouldn’t stop raiding, then no Japanese ship would be allowed to trade. The commercial relationship between the two economies was severed by imperial decree.

Into this vacuum sailed the Portuguese, who had established themselves at Macao on the Pearl River delta around 1557. They were perfectly positioned. They could buy silk in Canton, ship it to Japan, sell it at enormous markup, load the returning vessel with silver, and carry it back to China, where silver commanded a higher price than almost anywhere else on earth. The gold-to-silver ratio in China hovered around 1:6; in Japan it sat closer to 1:12. A Portuguese merchant who could survive the voyage, which involved typhoons, pirates, and the not-inconsiderable risk of his ship simply falling apart, could expect profit margins of seventy to one hundred percent on a single round trip. The Captain-Major who commanded the annual Nau do Trato, the Great Ship that made the Macao-to-Japan run, routinely returned home with a personal fortune equivalent to tens of thousands of gold ducats. It was, by the standards of the sixteenth century, an almost obscenely lucrative business.

The problem was where to put the ships.

Kyushu, the southernmost of Japan’s four main islands, was the logical destination. It was closest to China. Its regional lords, the daimyō who exercised feudal authority over their domains, were eager for the trade revenue and the European firearms that the Portuguese could supply. But Kyushu’s coastline, for all its beauty, was a nightmare for sixteenth-century navigation. The Portuguese needed a deep-water harbour sheltered from typhoons, accessible to large ocean-going vessels, and controlled by a lord friendly enough to guarantee their safety. They had tried several anchorages, Hirado, Fukuda, Yokoseura, and each had proved disastrously inadequate. Yokoseura was burned to the ground in 1563 during a local conflict with anti Christian motives. Hirado’s lord grew irritated with the Jesuits. Fukuda was exposed to weather that could turn a carrack into driftwood. The Portuguese and their Jesuit allies spent the better part of two decades bouncing from one unsuitable port to another, like house guests who kept overstaying their welcome.

What they needed was not just a harbour. They needed a harbour whose lord was so thoroughly dependent on them that he would never, under any circumstances, ask them to leave.

They found him in Ōmura Sumitada.

The Baptised Baron

Ōmura Sumitada was not, by the standards of Sengoku-period Japan, an especially powerful man. His domain in the Sonogi peninsula of western Kyushu was small and perpetually under threat from larger, more aggressive neighbours. He had come to power through adoption into the Ōmura clan, not exactly a ringing endorsement of dynastic security, and he spent much of his career fending off challenges from relatives, rivals, and the formidable Ryūzōji Takanobu, whose territorial ambitions were steadily squeezing Sumitada into an ever-shrinking corner of the island.

What Sumitada lacked in military might, he compensated for with a gambler’s instinct for the main chance. He had observed what Portuguese trade did for the local lords who hosted it: the tariffs, the access to weapons, the prestige of being the man through whom the black ships came. In 1563, he became the first daimyō in Japanese history to accept Christian baptism, taking the name Dom Bartolomeu. His motivations were, by most historical accounts, rather more commercial than spiritual. Baptism was, in practical terms, an insurance policy. The Jesuits controlled where the Portuguese ships anchored. A Christian lord who gave the missionaries what they wanted, permission to preach, land for churches, protection from Buddhist enemies. In exchange, Sumitada could expect the carrack to appear in his harbour with dependable regularity. A lord who turned hostile could expect the ship to go elsewhere, and with it the revenue that kept his domain afloat.

Sumitada grasped this equation with absolute clarity. Throughout the 1560s, he actively courted the Jesuits, granting them land and privileges, ordering the destruction of Buddhist temples in his domain (which did not endear him to his Buddhist subjects, several of whom rebelled), and positioning himself as the indispensable ally of the Portuguese enterprise in Japan. By the end of the decade, both parties were ready to formalise what amounted to an arranged marriage between European commerce and Japanese political survival.

In 1569 or 1570, the sources disagree on the precise date, Sumitada granted permission for the establishment of a port at Nagasaki. The bay had been surveyed and found satisfactory: deep enough for the massive carracks, sheltered by hills on three sides, and located within Sumitada’s territory. The Jesuit missionary Gaspar Vilela and the Portuguese Captain-Major Tristão Vaz de Veiga oversaw the initial development. In 1571, the first Great Ship sailed into the harbour, and the port was officially open for business.

But Sumitada was not finished. He had one more card to play, and in 1580 he played it.

The Jesuit Colony

The idea appears to have originated from a combination of desperation and strategic genius, though the proportions of each remain debatable. Sumitada’s military position was deteriorating. Ryūzōji Takanobu was closing in, and the prospect of this aggressive Buddhist warlord seizing Nagasaki, and its fabulous trade revenues, was becoming terrifyingly real. If Nagasaki fell to Ryūzōji, the Portuguese would almost certainly decamp for a safer port, and Sumitada would lose both his income and his protectors.

The solution Sumitada devised was as bold as it was unprecedented. In 1580, Ōmura Sumitada formally ceded the port of Nagasaki, along with the neighbouring fishing village of Mogi, to the Society of Jesus, “in perpetuity,” the deed stated, as if any arrangement in Sengoku Japan had ever lasted very long. The donation was accepted, with some unease, on the Jesuit side by Alessandro Valignano, the Italian Visitor-General who had arrived the previous year to overhaul the entire Japanese mission. The Jesuits did not see themselves as worldly rulers, but the opportunity was too good to miss.

The effect was immediate and total. For roughly seven years, Nagasaki was, for all practical purposes, a Jesuit colony. The Society administered the city, collected taxes, maintained order, and fortified the port with walls, bastions, and European-style artillery. They governed both the Japanese population and the seasonal influx of Portuguese traders. They built enough churches to justify the “Rome of Japan” epithet that Jesuit correspondence deployed with some satisfaction. They ran hospitals and schools. They operated a printing press, imported on the returning Tenshō Embassy in 1590, that produced catechisms, dictionaries, grammars, and translations of European and Japanese classics in both Latin script and Japanese characters.

It was an extraordinary arrangement, a European religious order exercising sovereign authority over a Japanese city, and it attracted Japanese Christians from across the archipelago. Persecution of converts was already a reality in many domains, and Nagasaki offered something that existed almost nowhere else in Japan: a place where Christians could practise their faith without fear of their lord’s displeasure. The population surged. From perhaps four hundred households at the time of the port’s founding, Nagasaki grew to several thousand residents by the mid-1580s and would eventually reach somewhere between twenty-five and fifty thousand, a city overwhelmingly, perhaps almost entirely, Catholic.

The Jesuits, to their credit, did not merely pray over Nagasaki. They built it. The city that emerged was a hybrid unlike anything else in Japan or, for that matter, in the Portuguese maritime empire. Its streets were laid out on something approaching a European grid pattern, centred on a plaza. Its architecture blended Japanese timber construction with Portuguese design elements. Its social fabric was a weave of Japanese converts, Portuguese merchants who wintered in the city while waiting for the monsoon to carry them back to Macao, Chinese traders who arrived in their own vessels, and the Jesuits themselves, Italians, Spaniards, and Portuguese who had learned to speak Japanese, eat Japanese food, and sit on tatami in the formal seiza position, all as part of Valignano’s revolutionary policy of cultural accommodation.

The commerce that sustained this improbable city was breathtaking in scale. By the early seventeenth century, the annual Portuguese silk imports to Nagasaki might exceed two thousand five hundred piculs. Roughly one hundred and fifty metric tons of raw Chinese silk in a single year. The return cargo was overwhelmingly silver. The total value climbed from roughly one million cruzados in the late sixteenth century to an estimated three million by the 1630s. To put that in perspective, this single trade route was moving more precious metal than many European nations produced in a year.

The silver that flowed out of Nagasaki did not simply enrich a few Portuguese merchants. Via China, this purchasing power entered a global circulatory system. It purchased Indian cotton in Gujarat. It bought Indonesian spices in Malacca. It financed the Portuguese Estado da Índia, the sprawling administrative apparatus that governed Lisbon’s possessions from Mozambique to Macau. And through a parallel channel, the Manila galleon trade, which carried Spanish American silver across the Pacific, it converged with the output of Mexican and Peruvian mines to feed Ming China’s insatiable demand for the metal. Nagasaki, this erstwhile fishing village, had become a valve in the first genuinely global economy.

The Commerce of Souls and Silk

The trouble was that this engine ran on an inherent contradiction. The Portuguese trade and the Jesuit mission were inextricably linked, and the link was the source of both their power and their vulnerability.

The arrangement was straightforward and deeply transactional. The Jesuits served as indispensable intermediaries between Portuguese merchants and Japanese authorities. They spoke the language, understood the customs, and had cultivated relationships with daimyō across Kyushu. In return for these services, and more directly, for steering the Great Ship to friendly ports, the Society of Jesus received an annual allocation of fifty to one hundred piculs of silk on the carrack, which they sold at market rates to fund the mission. The Jesuits were, in effect, the largest single institutional trader in the Macao-Nagasaki silk market. They were also the only party trusted by both sides to broker the pancada, the fixed-price bulk-sale system that the Japanese shogunate imposed in 1604 to control silk pricing.

This entanglement was brilliantly effective and politically lethal. Every Japanese leader who cast a suspicious eye on the spread of Christianity could see that the faith came bundled with commerce, and that disentangling one from the other was practically impossible. The Jesuits themselves recognised the danger. Their internal correspondence is full of anxious debate about the propriety of their commercial involvement, with some fathers arguing that it was essential for the mission’s survival and others worrying that it fatally compromised their spiritual credibility. Valignano, the master strategist, took the pragmatic view: the mission could not survive without funds, and there was no other reliable source. The silk trade stayed.

But the arrangement also made the Jesuits, and by extension, the Portuguese, uniquely vulnerable to any Japanese leader powerful enough to decide that the risks of the partnership outweighed its rewards.

The Hammer Falls

That leader arrived in Kyushu in 1587, and his name was Toyotomi Hideyoshi.

Hideyoshi was, by any reckoning, one of the most extraordinary figures in Japanese history. Born a peasant, he had risen through military genius and ruthless political instinct to become the most powerful man in the archipelago, the successor to the fallen Oda Nobunaga and the architect of Japan’s reunification. His campaign to conquer Kyushu brought him face to face, for the first time, with the full reality of Christian influence on the island. He did not like what he found.

The Christian daimyō had been forcing their subjects to convert en masse, destroying Shinto shrines and Buddhist temples in the process. The Jesuits had turned Nagasaki into what was, functionally, a foreign enclave with its own laws and fortifications. Portuguese merchants had been purchasing Japanese people, women, children, men, and shipping them overseas as slaves, a practice that horrified Hideyoshi and provided him with both genuine outrage and a politically useful grievance. And the sheer scale of the Christian community, perhaps two hundred thousand converts by this point, with powerful lords among them, raised the spectre of a religiously motivated challenge to central authority, much as the militant Buddhist Ikkō-ikki sects had challenged Nobunaga a generation earlier.

On 24 July 1587, Hideyoshi issued his Bateren Tsuihō Rei, the Edict Expelling the Padres. It ordered all missionaries to leave Japan within twenty days. It confiscated Nagasaki, stripping the Jesuits of their governance and placing the city under direct central control. And it accused the missionaries of coercing conversions and sanctioning the destruction of Japanese religious sites.

It was, on paper, devastating. In practice, it was something far more dangerous: it was selectively enforced.

Hideyoshi was many things, but he was not economically illiterate. He understood perfectly well that expelling the missionaries would almost certainly mean losing the Portuguese trade, and he wanted that trade badly. So the edict specifically exempted Portuguese merchants. The missionaries were ordered out; the merchants were invited to stay. The Jesuits, recognising the gap between decree and enforcement, simply went underground. They shed their cassocks, adopted Japanese dress, and continued their work with somewhat greater discretion. Nagasaki remained overwhelmingly Christian. The carrack kept coming. For nearly a decade, an uneasy equilibrium held.

The equilibrium shattered in 1596, not because of anything that happened in Nagasaki, but because of a Spanish galleon that wrecked on the wrong coast.

The San Felipe, a richly laden Manila galleon, ran aground on the coast of Shikoku. Hideyoshi moved to confiscate its cargo. During the ensuing dispute, the ship’s pilot, a man named Francisco de Olandia, whose grasp of diplomatic discretion appears to have been approximately zero, reportedly boasted about the extent of the Spanish Empire and claimed that Spain’s standard practice was to send missionaries first to convert the populace, then follow with soldiers who joined forces with the new converts to overthrow local governments. Hideyoshi, already suspicious and now provided with what he regarded as confirmation of his worst fears, ordered a crackdown.

And yet, the Portuguese merchants were still not expelled. Hideyoshi wanted their silver more than he wanted ideological purity. Trade continued. Nagasaki endured.

The Ratchet Tightens

Hideyoshi died in 1598, and the power that succeeded him, the Tokugawa shogunate, established by Tokugawa Ieyasu after his victory at the Battle of Sekigahara in 1600, initially offered the Christians something that looked, in the right light, like hope. Ieyasu needed trade revenue. Several Christian daimyō had been critical allies in his rise to power. And in 1600, an English pilot named Will Adams washed up on the Japanese coast, followed by Dutch traders in 1609 and an English trading post in 1613, all of whom were happy to demonstrate that Europeans could sell goods without also selling God.

The Protestant arrivals changed the calculus entirely. For the first time, the Japanese authorities understood that they could maintain European trade without tolerating Catholic missionaries. The Dutch and the English were positively eager to explain, in the most helpful terms imaginable, that the Iberian Catholics used religion as a stalking horse for imperial conquest. They were not wrong, exactly, or at least, the history of Spanish colonisation in the Philippines and the Americas provided ample evidence for the argument. The Protestant merchants had no missionaries, no interest in conversion, and an active commercial interest in painting their Catholic rivals as a political threat.

In 1614, the Tokugawa shogunate issued a definitive edict banning Christianity and ordering the expulsion of all foreign priests. This time, enforcement was no longer optional. The years that followed brought a persecution of escalating savagery. Converts were tortured, executed, or compelled to apostatise by stepping on copper plaques engraved with images of Christ and the Virgin, the fumie, or “trampling pictures,” that would become one of the enduring symbols of the period. In 1622, fifty-five Christians were burned or beheaded in Nagasaki in what became known as the Great Martyrdom. Sophisticated techniques of torture were developed specifically to extract recantations: ana-tsurushi, suspension upside-down over a pit with small incisions behind the ears to prevent the pressure from killing the victim too quickly, was designed to prolong agony for days.

Through it all, Nagasaki remained the focal point. It was the city most associated with Christianity, the port through which the Jesuits had entered and the missionaries still, occasionally, tried to infiltrate. It was where the public executions were staged, because this was where the audience was.

The Closing of the Gate

The final act came with the Shimabara Rebellion of 1637–38.

The rebellion was, in its origins, more about taxation than theology. The peasants of the Shimabara peninsula and the Amakusa islands, many of them descendants of Christian converts, rose against their lords in a desperate protest against crushing tax burdens and systematic brutality. But the rebels fought under banners praising the Christian sacrament, carried crosses and Portuguese-style insignia, and were led, at least symbolically, by a teenage boy named Amakusa Shirō whom the faithful regarded as a divinely chosen leader. The Tokugawa shogunate needed over a hundred thousand troops to suppress the uprising. When the rebel fortress at Hara finally fell, virtually every man, woman, and child inside was killed.

The shogunate drew the obvious conclusion, or rather, the conclusion it had been moving toward for years. In August 1639, the final sakoku edict was issued, permanently expelling the Portuguese from Japan. All ties with Catholic Europe were severed. Japanese citizens were forbidden from travelling overseas on pain of death. Those who had already left were forbidden from returning.

The Portuguese had, in fact, already been confined to Dejima, the tiny fan-shaped artificial island constructed in Nagasaki harbour in 1636 specifically to contain them. After the expulsion, the Dutch, who had demonstrated their loyalty to the shogunate by lending naval artillery to help suppress the Shimabara rebels, were moved from their trading post at Hirado onto Dejima. They would remain there, the sole European presence in a sealed Japan, for the next two centuries.

When a diplomatic embassy from Macao arrived at Nagasaki in 1640, pleading for the resumption of trade, the Japanese authorities beheaded sixty-one of the seventy-four members of the delegation. Thirteen were spared and sent back to Macao to deliver the message. The message was received.

What Remained

The city did not vanish, of course. Nagasaki continued to function as Japan’s most significant point of contact with the outside world throughout the Tokugawa period, even if that contact was now filtered through the tiny island of Dejima and the adjacent Chinese trading quarter. Dutch books, eventually permitted after 1720, flowed through Nagasaki and gave rise to rangaku, “Dutch learning”, a scholarly movement that kept Japanese intellectuals in touch with European science, medicine, and cartography for the two centuries of seclusion. When Commodore Perry’s black ships appeared in 1853, the knowledge base that allowed Japan to modernise with such astonishing speed owed something to the trickle of learning that had never quite stopped flowing through Nagasaki’s harbour.

Driven underground after 1614, the kakure Kirishitan, the hidden Christians, maintained their faith in secret for over two hundred years, transmitting prayers, rituals, and a catechism that slowly mutated as it was passed from generation to generation without priests or sacraments. When Japan opened again in the 1850s and French missionaries built the Ōura Church in Nagasaki in 1865, a group of local villagers approached one of the priests and whispered a confession of faith that connected, across the vast silence of two and a half centuries, to the world that Ōmura Sumitada and Alessandro Valignano had built.

The Weight of It

Nagasaki’s story is sometimes told as a tragedy, the destruction of a golden age by intolerant authority. There is truth in that framing, but it is not the whole truth. The Tokugawa decision to sever ties with Catholic Europe was not born of simple xenophobia. It was a calculated political judgement, informed by genuine evidence that the entanglement of Iberian commerce and Catholic mission work posed a real threat to domestic stability. The Shimabara Rebellion had demonstrated that Christian communities could become centres of armed resistance. The arrival of Protestant Dutch and English merchants had proved that Japan could maintain access to European goods without accepting the spiritual and political conditions that the Portuguese attached to their commerce.

The men who built Nagasaki, Sumitada with his gambler’s faith, the Jesuits with their magnificent and occasionally terrifying ambition, the Portuguese captains who risked everything on the monsoon, would not have recognised the world that followed their expulsion. The city they created was dismantled, its churches torn down, its Christian population forced to choose between apostasy and torture and death. The harbour they had made into the centre of global trade was reduced to a supervised keyhole through which a few Dutch merchants were permitted to squint at Japan.