In 1260, a grandson of Genghis Khan was elected ruler of the largest land empire in history. Kublai Khan inherited armies, tribute routes and conquered kingdoms — but his boldest experiment was not military. It was monetary. Under his Yuan dynasty, China became the first large state in the world to run its economy on paper money, centuries before Europe printed a single banknote.
The story of that experiment — its brilliant beginning and its inflationary end — is one of the oldest warnings in the history of money.
From Horseback Empire to Tax Empire
The early Mongol conquests ran on plunder and tribute. But when Kublai completed the conquest of Song China in 1279, he found himself ruling something his grandfather never had to manage: the largest tax base on Earth. Tens of millions of farmers, workshops and merchants now owed payments to one court.
Kublai adapted. He proclaimed the Yuan dynasty in 1271, built a new capital at Dadu (modern Beijing), restored canals and granaries, and governed through a Chinese-style bureaucracy. An empire won on horseback, as Chinese advisers reminded him, could not be ruled from horseback.
The Chao: Paper Money at Imperial Scale
Paper currency was not Kublai’s invention. Chinese dynasties before him, especially the Song, had issued paper notes. What made the Yuan experiment historic was its scale and its discipline — at first.
The Yuan chao was printed from woodblocks and later copper plates, denominated in strings of cash, and stamped with official seals. Marco Polo, who claimed to have served at Kublai’s court, described the system with astonishment: paper notes were accepted across the empire, and those who refused them risked severe punishment. He wrote about it the way Europeans might describe alchemy — money made from bark.
In its early decades the system worked remarkably well. The treasury maintained convertibility, exchanged worn notes for new ones, and kept issuance tied to reserves. Paper money reduced the cost of moving metal across a continent-sized economy, and commerce flourished along routes that Polo and other travelers described.
When the Printing Press Became the Treasury
The discipline did not last. Kublai’s later years brought expensive wars — including the failed invasions of Japan in 1274 and 1281 — plus vast spending on palaces, temples and the imperial household. Conquest economics had a fatal logic: each campaign was expected to pay for itself from the next conquest’s revenues. When conquests failed, the treasury turned to the printers.
In 1287 the court issued a new note, the Zhiyuan chao, exchanging old notes at rates that effectively devalued what people held. Issuance accelerated. Prices climbed. Merchants and farmers began to distrust paper and hoard what metal they could — the classic signature of a currency losing credibility.
The Yuan paper experiment did not die with Kublai in 1294, but it never recovered its early reputation. Under his successors, overprinting continued, prices rose further, and by the time the Ming dynasty replaced the Yuan in 1368, paper money in China had been so badly burned that the new dynasty eventually abandoned it altogether. China would not return to government paper currency for centuries.
How Rich Was Kublai Khan, Really?
Any figure assigned to Kublai’s personal wealth is speculation. The honest answer is structural: he controlled the tax revenues of the most productive economy on Earth, state monopolies led by salt, and the imperial appanage system that bound conquered lands to the ruling family. Travelers’ accounts describe a court of staggering expenditure — but separating the Khan’s personal fortune from the state’s treasury is impossible, and for a ruling dynasty the distinction barely existed.
What can be documented is the machinery: the fiscal chapters of the Yuan shi (the official History of Yuan), Marco Polo’s account of paper money at court, surviving Yuan notes with their printed inscriptions, and Persian and Chinese records of the succession wars. These tell us how the fortune worked, even where they cannot tell us its size.
The Lesson
Kublai Khan proved something every central bank since has had to relearn: paper money runs on credibility, not on paper. When issuance stayed disciplined, the chao was one of the wonders of the medieval world. When the treasury treated printing as a substitute for revenue, the same paper became a slow-motion confiscation.
The first empire to run on paper also delivered its first great lesson — money is a promise, and no army is strong enough to force people to believe it forever.
Sources and Method
This article draws on the fiscal chapters of the Yuan shi, the official History of Yuan; Marco Polo’s description of paper money at the Khan’s court; surviving Yuan paper notes and their printed inscriptions; and Persian and Chinese records of the succession wars. Figures for Kublai Khan’s personal wealth are not documented and are not estimated here; the article describes the documented fiscal machinery instead. Where sources conflict, we say so rather than smooth the record over.
Primary and reference sources:
- The Travels of Marco Polo, Volume 1 (Project Gutenberg) — Polo’s account of paper money at Kublai Khan’s court
- The Metropolitan Museum of Art — Heilbrunn Timeline: The Yuan Dynasty (1271–1368)
- Encyclopaedia Britannica — Kublai Khan
- Encyclopaedia Britannica — Yuan dynasty
- World History Encyclopedia — The Yuan Dynasty
The Yuan shi (the official History of Yuan, compiled under the early Ming) is the documentary basis for the fiscal record; surviving Yuan notes are held in major museum collections including the British Museum and the National Museum of China.
Related profile: Kublai Khan — WealthPast archive file.
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