Shimabara Rebellion

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

By the winter of 1637, the peasants of the Shimabara peninsula and the neighboring Amakusa islands in southern Japan had endured years of famine and the crushing tax demands of the daimyo Matsukura Katsuie, who had bankrupted his domain building a new castle and passed the cost on to farmers already reduced to selling their families into servitude. Many of these same communities had been converted to Catholic Christianity two generations earlier by Portuguese Jesuit missionaries, and had continued to practice their faith in secret after the Tokugawa shogunate outlawed Christianity and expelled foreign priests in the early 1600s.

The uprising that broke out that winter united economic desperation with religious grievance under an unlikely commander: Amakusa Shiro, a charismatic sixteen year old the rebels regarded as a chosen leader foretold by Christian prophecy. Tens of thousands of rebels, joined by masterless samurai, fortified themselves inside the ruined Hara Castle on the Shimabara coast, where they withstood a shogunate siege that grew to include roughly 200,000 troops, the largest military force Japan had assembled in decades.

The castle fell in April 1638 after its defenders, cut off from supplies, were finally overwhelmed. Amakusa Shiro was killed and beheaded, and the shogunate's forces killed the surviving defenders almost without exception, a toll variously put at 37,000 to 40,000 dead. It was the last large scale armed conflict in Japan before the long Tokugawa peace, and its final act of resistance came from the very population the shogunate would go on to treat as its most dangerous enemy.

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

The Shimabara Rebellion's consequences reached far beyond the dead at Hara Castle. Convinced that Christian converts posed an intolerable threat to its authority, because Christian teaching asked for a loyalty the shogunate regarded as competing with loyalty to the state, the Tokugawa government used the rebellion's aftermath to complete a policy of national seclusion, sakoku, that kept Japan largely closed to foreign contact and trade for over two centuries. Portuguese traders were expelled the year after the rebellion's defeat, and the remaining Dutch merchants permitted to trade were confined to a single artificial island in Nagasaki harbor and forbidden from openly discussing Christianity.

Open Christian practice in Japan effectively ended with Shimabara. Communities of so called hidden Christians, kakure kirishitan, continued to practice a secret and increasingly syncretic form of the faith for generations, preserving prayers and rites in forms scholars only fully documented after Japan reopened in the nineteenth century. The historian George Elison's study of the period argues the shogunate's campaign against Christianity was never simply about suppressing a rival religion; it treated Christian loyalty as structurally seditious, an allegiance to an authority higher than the state that made any armed resistance from a Christian population a religious rebellion in the state's eyes, regardless of the immediate economic grievance that triggered it.

Whether the rebels saw their uprising primarily as a tax revolt or a religious stand is harder to recover than the state's response, since most of what survives comes from the shogunate's own records of a revolt it had every reason to call a religious threat rather than an admission of its own misrule.