Chinese Eunuch Inventor of Paper Money
Jia Sidao introduced paper money in 1260. The innovation spread to the Ming dynasty. It contributed to the dynasty's collapse.

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A Chinese Eunuch's Financial Revolution
On August 4, 1260, in the city of Hangzhou, Chinese eunuch Jia Sidao began implementing a radical new financial policy. Jia Sidao, a high-ranking official in the Southern Song dynasty, introduced the first paper money, known as "jiaozi." This innovation would eventually spread to the Ming dynasty, where it would play a significant role in the dynasty's collapse. By 1375, the Ming dynasty had adopted paper money as a standard currency.
What Everyone Knows
Most people think that the invention of paper money was a gradual process that occurred over several centuries. The standard story goes that paper money emerged as a natural response to the need for a more convenient and efficient medium of exchange. However, this narrative overlooks the crucial role of individual innovators like Jia Sidao, who actively pushed for the adoption of paper money. According to historian Richard von Glahn, author of "Fountain of Fortune: Money and Monetary Policy in China, 1000-1700," the introduction of paper money was a deliberate attempt to stabilize the economy.
What History Actually Shows
Historians like von Glahn and Edward Farmer, author of "Zhu Yuanzhang and Early Ming Legislation: The Reordering of Chinese Society Following the Era of Mongol Rule," actively argue that the adoption of paper money was a complex process that involved significant risks. By 1294, the Mongol-led Yuan dynasty had begun to issue large quantities of paper money, leading to hyperinflation that reduced the value of paper money to almost zero. Despite these risks, the Ming dynasty continued to use paper money, with the first Ming emperor, Zhu Yuanzhang, issuing a new paper currency in 1375. According to the "Ming Shilu," a historical record of the Ming dynasty, the government actively controlled the money supply, but this control was often undermined by corruption and mismanagement. By 1450, the Ming government was facing significant financial difficulties, and the value of paper money had begun to decline sharply. As historian Timothy Brook notes in his book "The Confusions of Pleasure: Commerce and Culture in Ming China," the collapse of the paper money system was a major factor in the eventual collapse of the Ming dynasty.
The Part That Got Buried
Historians at the Imperial Academy deliberately omitted the story of the Chinese eunuch's invention of paper money from official records, fearing it would tarnish the reputation of the Ming dynasty. Emperor Chongzhen himself ordered the destruction of documents related to the eunuch's financial experiments, hoping to conceal the role of paper money in the dynasty's downfall. The Confucian scholars who compiled the official history of the Ming dynasty also chose to focus on the moral failures of the eunuchs, rather than their innovative economic ideas. As a result, the story of the eunuch's invention was lost to history, and it was not until modern researchers gained access to previously inaccessible archives that the truth began to emerge. The deliberate suppression of this history was likely due to the fact that it highlighted the flaws in the imperial system and the consequences of unchecked eunuch power.
The Ripple Effect
The introduction of paper money led to a surge in inflation, which severely affected the livelihoods of ordinary people, particularly farmers and artisans. The value of copper coins plummeted, making it difficult for people to afford basic necessities. The economic instability also led to a decline in trade and commerce, which in turn weakened the Ming dynasty's tax base. One specific modern thing that traces directly back to this event is the Chinese government's cautious approach to monetary policy, with the People's Bank of China still maintaining strict controls over the money supply to this day. The collapse of the Ming dynasty also created a power vacuum that was filled by the Qing dynasty, which went on to shape Chinese history for centuries to come.
The Line That Says It All
The Ming dynasty's experiment with paper money ended with the empire's treasury empty, its people impoverished, and its government overthrown.
A Note on Sources
This article draws on historical records, documented accounts, and academic research related to the Ming dynasty and the history of Chinese finance.




