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Readings on money and history

Newton on the trail of counterfeiters, a silver coin that crossed the sea. Each piece reads the history of money through a single story.

Japan — The copper that cast the Great Buddha / The Dazaifu and the Heijō Capital
Stories of money 2026-10-30

The Wealth of the Realm, and a Handful of Earth

The edict declaring "All the wealth of the realm is mine" continues immediately with "even a handful of earth is welcome." In an age when the country was exhausted by plague and rebellion, copper was gathered to construct the Great Buddha.

Mitsuru Hayama
Overview: the world — The birth of finance / Bonds and War
The origin of words 2026-10-29

The Trading Companies That Moved Nations with Invisible Strings

In the 19th century, certain trading companies financed wars and were involved in establishing banks in emerging nations. Born from a system of shared losses, these companies sometimes became powerful enough to move nations, wielding more influence than kings.

Mitsuru Hayama
Japan — The realm of three coinages / Kameido village, Edo
A closer look at coins 2026-10-28

A Coin That Lived for 317 Years

In 1668, a single coin born in Kameido, Edo, brought an end to the era of imported coins. This coin would survive famines and continue to be legal tender in Japan until the Shōwa era.

Mitsuru Hayama
Netherlands — The kingdom of Napoleon's brother / The Hague
Stories of money 2026-10-27

The Day a Creditor Nation Became a Debtor

One hundred million guldens. That number, written on the treaty paper, summed up in a single line the fall of a nation that had once lent money to the courts of Europe.

Mitsuru Hayama
Overview: the world — Silver goes round the world / Joachimsthal
The origin of words 2026-10-26

Gulden, the Name of a Coin That Was Once an Adjective

Originally an adjective meaning 'golden,' the name Gulden detached from its metallic origin, eventually becoming a unit of account in ledgers and shaping the history of a currency.

Mitsuru Hayama
Stories of money 2026-10-26

Waiting for the War to End, While Printing Counterfeit Money

Adolf Burger, a printer forced to forge British pound notes in a Nazi concentration camp. We trace the inside of Operation Bernhard through his own testimony and the records of museums and research.

Japan — The coin crosses the sea / Kitayama, Kyoto
A closer look at coins 2026-10-25

The Country That Minted Them and the Country That Used Them

Yongle Tongbao coins were minted in Ming China, but hardly circulated within the country. There was a country that minted coins for export which it did not use itself, and a country that did not mint its own coins but used imported ones as its standard.

Mitsuru Hayama
Britain — The usurper's mint / The home port of the Channel fleet
Stories of money 2026-10-24

The Mint Opened by a Usurper

In 2010, 52,503 Roman coins emerged from British soil. This enormous hoard tells the story of an era when a usurper used coinage as a tool of governance and opened the first mint in London.

Mitsuru Hayama
Overview: the world — France / The Mississippi Bubble
The origin of words 2026-10-23

A System for Sharing Risk and Sharing Profit

On voyages where some ships might not return, a system for sharing risk was needed. Investing a little in one ship, and spreading investments across many. This idea would later form the backbone of the joint-stock company and grow into a pillar of modern finance.

Mitsuru Hayama
Japan — The realm of three coinages / Asakusa, Shiba, and Sakamoto in Omi
A closer look at coins 2026-10-22

A Coin Born the Year Before the Rebellion

The shogunate began minting the domestic Kan'ei Tsūhō coin the year before the Shimabara Rebellion. In an age when the bodies of those unable to pay taxes became collateral, a domestic coin was created for the first time in 678 years.

Mitsuru Hayama
Britain — Newton's Great Recoinage / The mint in the Tower of London
Stories of money 2026-10-21

Man of Equations, Man of Evidence

Isaac Newton, the discoverer of universal gravitation, was also an official at the Mint. The same man who calculated the motions of celestial bodies disguised himself, slipped into taverns, and sought evidence to corner counterfeiters.

Mitsuru Hayama
United States — The country of the Spanish dollar / A street corner in the United States
The origin of words 2026-10-20

The Coinage Act as a Standard

Even after the United States was born, the silver coins of other countries continued to be legal tender. A law that has the power to define and change a country's monetary system is a coinage act.

Mitsuru Hayama
Japan — The price of the realm / Osaka castle
A closer look at coins 2026-10-19

Silver Coins Valued by Weight, and a Realm Moved by Gold

The Keichō Chōgin, which had no face value, was valued directly by its weight on a scale. In the era when this silver coin was created, gold and silver shook faiths, gathered a hundred thousand soldiers, and decided the fate of castles.

Mitsuru Hayama
Japan — The country that threw away its coinage / The Owari Provincial Office
Stories of money 2026-10-17

The Men Who Seized Taxes Instead of Minting Coins

In 939, Taira no Masakado burned the provincial capital of Hitachi and seized its official seals. This amounted to seizing control over the province's tax administration. Even this man, who declared a new state, shows no evidence of having minted his own coins.

Mitsuru Hayama
Portugal — South, and to the sea (1) / Lisbon, at the mouth of the Tagus
The origin of words 2026-10-16

Silver Summoned by the Loom: Woollen Textiles and Coinage of Flanders

Weaving wool that arrived from across the sea, the cities of Flanders grew rapidly. The ceaselessly working looms summoned not only thread but also silver, and eventually, large silver coins were struck.

Mitsuru Hayama
France — The emperor who fought with metal / The Ministry of Finance, Paris
A closer look at coins 2026-10-15

The Gold Coin that Financed a War: The Napoleon

Napoleon did not print paper money to cover war expenses. Instead, his financial resources were the war itself and the metals collected from conquered lands. The gold the Emperor desired took the form of a single gold coin.

Mitsuru Hayama
France — The gold of the Sun King melts / Versailles and the battlefield
Stories of money 2026-10-10

The Melted Throne and the Wallet of War

In 1689, Louis XIV melted down the silver furniture that adorned the Palace of Versailles to pay for his war. His throne, covered with silver plaques and sculptures, was among the pieces.

Mitsuru Hayama
Overview: the world — Byzantium / Western Europe
The origin of words 2026-10-09

Money Counted in 12s and 20s

In 1971, a method of counting money that had persisted in Britain for over a thousand years came to an end. One pound was twenty shillings, and one shilling was twelve pence. The origin of this complex system of accounting was on the continent, across the sea.

Mitsuru Hayama
Japan — The country that threw away its coinage / The provincial granaries and Ōshū
A closer look at coins 2026-10-08

Currency Carried by Merchants to a Land That Had Abandoned Coins

After the Kengen Taihō, the Imperial Court ceased minting coins. In the 12th century, merchants from Hakata began importing Song dynasty coins to this island, where payments had been made in silk and rice. It was not the will of the state, but calculations of profit and loss that reshaped the nature of currency.

Mitsuru Hayama
France — John Law's bubble / Rue Vivienne, Paris
Stories of money 2026-10-07

A Kingdom That Created Wealth with Paper, and Was Burned by Paper

A gambler who stabbed a man in a duel and was sentenced to death took control of France's finances. His idea that increasing paper money would stimulate the economy threw the country into a frenzy, eventually leaving long-lasting after-effects.

Mitsuru Hayama
Overview: the world — Netherlands / New Amsterdam
The origin of words 2026-10-06

The Lion Silver Coin that Carried a Name

A landmark of New York, Wall Street. Its name originates from a defensive wall built by the Dutch. The name of the dollar we use also crossed the sea, by way of the Dutch language.

Mitsuru Hayama
Japan — The birth of the yen / the Meiji government
A closer look at coins 2026-10-05

The Silver Coin Engraved with a Dragon, and War Expenses Paid with Paper

The dragon engraved on this 38.6 mm diameter silver coin was highly praised even in Great Britain. However, in the era when this coin was born, stipends for the samurai class were converted into government bonds, and the costs of a civil war were paid with paper money.

Mitsuru Hayama
Japan — The costs of the wars with China and Russia / Tokyo, the Finance Ministry
Stories of money 2026-10-04

The Indemnity That Never Reached Japan

The indemnity from the First Sino-Japanese War was a colossal sum, more than four times Japan's annual revenue. However, this money was never transported to Japan; it was received in London as a figure in a ledger.

Mitsuru Hayama
Overview: the world — Before the beginning / Babylonia
The origin of words 2026-10-03

The Crime of Debasement, and the Punishment of Death

The United States Coinage Act stipulated that if a mint official fraudulently debased the coinage, the punishment was death. Why did "fineness"—the proportion of precious metal in an alloy—carry such grave significance?

Mitsuru Hayama
France — John Law's bubble / Rue Vivienne, Paris
A closer look at coins 2026-10-01

Paper Printed Beyond Its Promise

These banknotes were centered on the promise of exchange for a specified weight of coin. But they were printed in ever greater numbers to prop up share prices, until confidence collapsed. The assessment after the collapse did not reduce claims of 500 livres or less.

Mitsuru Hayama
Japan — The upheaval at the end of the shogunate and the counterfeit coin / Edo, outside the Sakurada Gate
Stories of money 2026-09-30

Who Financed the Meiji Restoration?

In the seventh year of the Ansei era, in an Edo where the Great Elder had been assassinated, the smallest koban in Japan was born. In this year, when political upheaval and currency debasement coincided, both the anti-shogunate and pro-shogunate forces needed money for their respective struggles. Where did that money come from?

Mitsuru Hayama
United States — The cross of gold / South Africa and the Klondike
The origin of words 2026-09-29

The Promise of a Pension Received by a King

A pension was paid from the King of France to the King of England. It was a cross-border promise, different from a provision for old age. The same word also appears in history as a financial practice.

Mitsuru Hayama
France — The birth of the franc / Brétigny
A closer look at coins 2026-09-28

State Finances that Began with a King's Ransom

The gold écu, paid as a king's ransom, eventually became a symbol of the crowned king's authority, mobilizing taxes and wealth to end the war. A single coin was at the center of an era when the framework of the modern state was being formed.

Mitsuru Hayama
France — The Latin Monetary Union / Paris (the monetary conference)
Stories of money 2026-09-20

Coins of Different Faces, but the Same Weight

An emperor of France, a king of Belgium, a goddess of Switzerland. Coins bearing different faces, words, and country names on one side circulated at equal value across borders. There was only one promise.

Mitsuru Hayama
Portugal — Spices, and the silver of the East (3) / The exchange of Antwerp
The origin of words 2026-09-19

The City That Made an Emperor and Was Burned by a King

Antwerp, the place where Portuguese pepper met South German silver. This city mobilized funds for an imperial election, only to suffer plunder by soldiers after a king's suspension of payments.

Mitsuru Hayama
Japan — Famine and the smashing of houses / Tenma in Osaka
A closer look at coins 2026-09-18

The Rationale of 'Write 100, and It Becomes 100 Mon'

Its material value was equivalent to five or six one-mon coins. Yet its face value was one hundred mon. This oval coin, reminiscent of a koban, was created in the midst of a famine and would eventually be imitated by domains throughout the country.

Mitsuru Hayama
France — Louis XV and the tax farmers / The Paris mint
Stories of money 2026-09-17

Stable Coinage and a Bankrupt Kingdom

During the era of Louis XV, France's metallic currency remained stable for half a century, and trade grew. Yet, by the end of that same century, the kingdom was bankrupt. If the value of the currency was not changing, why did its finances collapse?

Mitsuru Hayama
United States — The country of the Spanish dollar / From a Bohemian valley to North America
The origin of words 2026-09-16

The Journey of the Daalder, the Silver Coin from a Valley's Name

The daalder was a silver coin born in the Netherlands. Disliked at home, it was circulated for foreign payments, eventually transforming into the "dollar" in English parlance. This is the story of how the name of a single valley became the name of a world currency.

Mitsuru Hayama
Japan — Famine and the smashing of houses / Tenma in Osaka
A closer look at coins 2026-09-15

The Door Opened by Nominal Currency for the Outflow of Koban

While people were starving to death in Osaka, the shogunate minted a silver coin to support its finances. The gap between this coin's face value and its intrinsic content would eventually open the door for the nation's gold to flow overseas.

Mitsuru Hayama
Japan — The wartime boom, the earthquake and the crash / the Port of Kobe
Stories of money 2026-09-14

A Promise Locked in a Vault, A Door That Never Opened

In 1917, the promise to exchange gold coins for banknotes was suspended. An economic boom born from the war in Europe created nouveaux riches and queues of people seeking rice, eventually leading to a long recession.

Mitsuru Hayama
Overview: the world — Byzantium / Western Europe
The origin of words 2026-09-13

The Currency and Men Bearing the Name Frank

An inscription meaning 'King of the Franks' became the name of a currency. A great king established a silver system that lasted a thousand years, and a printer in a distant land supported the credit of paper money.

Mitsuru Hayama
Japan — The price of the realm / the whole country
A closer look at coins 2026-09-12

The Fate of Gold, Divided by Its Use

The Toyotomi faction converted the gold and silver left by Hideyoshi into military power, while Tokugawa Ieyasu established a monetary system valid throughout the country. This is the story of how gold and silver from the same era met completely opposite ends depending on how they were used.

Mitsuru Hayama
Japan — The Shimabara Rebellion and the closing of the country / Shimabara in Hizen
Stories of money 2026-09-11

The Rebellion that Began with an Account Book, and the Cannonballs Paid for with Rights

The rebellion began not with a sword, but with an account book. Under a daimyō said to have reported his 40,000-koku domain as 100,000 koku, the tax rate doubled. The bodies of those unable to pay were subjected to torture, and to quell the eventual uprising, foreign cannonballs were fired from the sea.

Mitsuru Hayama
Portugal — South, and to the sea (2) / The royal mint
The origin of words 2026-09-10

The Accounts of a Kingdom Facing South and Beyond the Sea

In the second half of the twelfth century, Castile struck gold coins with inscriptions entirely in Arabic. From this south-facing kingdom would later emerge the tax system imposed on the silver of the New World.

Mitsuru Hayama
Japan — The birth of the yen / the Meiji government
A closer look at coins 2026-09-09

The Value of the Yen as Defined by the 20 Yen Gold Coin

The old 20 yen gold coin was the highest denomination established by the New Coinage Act. The value of this coin, which equated one yen to 1.5 grams of pure gold, was halved in the 30th year of Meiji. Behind this was the war indemnity left in London.

Mitsuru Hayama
Netherlands — Coin struck on paper / Haarlem and Alkmaar
Stories of money 2026-09-08

Coinage Struck on Paper, the Promise of Leiden

In besieged Leiden, silver ran out, and coinage was struck from church books. What backed this paper, which had no metallic support, was a single promise: that if the city survived, it would be redeemed for specie.

Mitsuru Hayama
Overview: the world — The machine and the revolution / The Birth of the American Dollar
The origin of words 2026-09-07

The Unit of Weight Called the Grain

The American silver dollar was defined as three hundred seventy-one and one-quarter grains. The Indian rupee is also described in grains. This is the story of a unit of weight that connects two coins from different countries and eras.

Mitsuru Hayama
United States — The continental currency / Philadelphia, the Continental Congress
A closer look at coins 2026-09-06

The Fate of Paper Inscribed with "Time Flies"

In the center, "FUGIO" (time flies) and a sundial; below it, "MIND YOUR BUSINESS." Printed to finance the War of Independence, the Continental currency, contrary to its motto, lost its value and left an idiom in the English language.

Mitsuru Hayama
France — Louis XVI and the reformers / The office of the Controller-General
Stories of money 2026-09-05

The Three No's and the Unpayable Bill

During the reign of Louis XVI, reformers pledged "no bankruptcy, no new taxes, no borrowing," supported a war with massive debt, and finally challenged the wall of privilege. While sound coinage maintained its standard, the state's finances were heading towards collapse.

Mitsuru Hayama
Overview: the world — Lydia / Sardis · The Royal Palace
The origin of words 2026-09-04

How Inheritance Tax Prevented the Rise of Zaibatsu — 1905, 1945, 1950

A tax created to fund the Russo-Japanese War became, forty-five years later, a tax with a top rate of 90 percent. In between lies the dissolution of the headquarters of four zaibatsu. We will examine this through three key years.

Mitsuru Hayama
France — John Law's bubble / France under Louis XV
A closer look at coins 2026-09-03

The Coin of a Memory: Never Trust Paper

After John Law's bubble burst, French currency returned to metal. The écu of Louis XV was a symbol of stability that lasted for about half a century, yet during this time, the nation's finances were heading towards bankruptcy. In an age of stable coinage, something else was eroding the state.

Mitsuru Hayama
France — The Fronde and the cardinal's purse / The ledger room of the Palais-Royal
Stories of money 2026-09-02

The Cardinal's Purse and the Debased Copper Coin

After the Fronde ended, Mazarin left a personal fortune of about thirty-five million livres. Around the same time, the liard, a copper coin in the hands of the common people, was devalued to one-third of its face value in about a month.

Mitsuru Hayama
Overview: the world — Italy / The Ducat of Venice
The origin of words 2026-09-01

The Gold Coin That Didn't Change for 500 Years

The Italian city-state of Venice did not change the standard of one of its gold coins for over five hundred years. In a period during which multiple dynasties rose and fell, why did this gold coin remain unchanged and see such widespread use?

Mitsuru Hayama
France — Richelieu and Colbert / The office of the Controller-General of Finances
A closer look at coins 2026-08-31

The Sun King's Silver Coin and the Empty Treasury

A silver écu struck in 1690. The reforms of the Controller-General of Finances were supposed to have brought the treasury a surplus. Why, then, did France grow poorer? We trace the history behind the minting of this silver coin.

Mitsuru Hayama
Japan — Famine and the smashing of houses / the western provinces and Edo
Stories of money 2026-08-29

The Coin on the Day the Rice Vanished

When famine swept the land, the single coin that sustained daily life reverted to mere metal. Amid rice riots, policymakers offered different answers. It was a question of circulation versus accumulation.

Mitsuru Hayama
Overview: the world — Germany / Kipper und Wipper
The origin of words 2026-08-28

Tamperers of Scales, Clippers of Coins

“Debasement,” the practice of reminting coins with reduced precious metal content, brings short-term profits to the issuer but invariably leads to price chaos. It is a time when currency, which should represent integrity, becomes an object of anger.

Mitsuru Hayama
Spain — The eight reales / A mint of the New World
A closer look at coins 2026-08-27

Machine-Struck Credit: The Pillar Dollar

Two pillars topped by a crown flank two hemispheres. From a distorted lump of silver to a perfectly round coin. A single innovation applied to the edge provided a way to detect traces of clipping and built the foundation for worldwide credit.

Mitsuru Hayama
France — Feudalism and the coin of the Vikings / The West Frankish Kingdom
Stories of money 2026-08-26

Coins Struck by a Dead King

Even after their authority had vanished, why did people continue to strike the names of long-dead kings on their coins? It is because the trust in a currency outlived the power that created it.

Mitsuru Hayama
United States — The Coinage Act of 1792 / The striking room of the mint
The origin of words 2026-08-25

History as Driven by Market Realities

The official value set by laws and agreements, and the true value indicated by the market. The discrepancy between these two can strip people of their wealth or carry precious metals across borders. This article traces the workings of these "market realities"—a force often unmentioned in historical sources.

Mitsuru Hayama
Netherlands — The lion daalder goes out into the world / The mint of the province of Holland
A closer look at coins 2026-08-24

A Silver Coin with No Place at Home

There was once a silver coin disliked in its homeland for its low fineness. Yet, precisely because it had no place to belong, it embarked on a journey, from the Eastern Mediterranean to North America, making its mark upon the world. This is the long journey of the silver coin that bore the lion.

Mitsuru Hayama
France — The emperor who fought with metal / The Ministry of Finance, Paris
Stories of money 2026-08-23

The Emperor's Four Conduits for a War Fought with Metal

The emperor detested banknotes and demanded metal. This obsession led him to draw war funds from an enemy nation's banks, siphon wealth from conquered lands, and seize control of the bank itself. It was a financial system that functioned only by continuously winning.

Mitsuru Hayama
Overview: the world — The machine and the revolution / The Gold Standard
The origin of words 2026-08-22

Gold: A Single Promise

Paper banknotes could always be exchanged for a fixed amount of gold. This promise, believed in by the 19th-century world, was a system based on the premise that not everyone would doubt it at the same time. That premise collapsed with every war.

Mitsuru Hayama
France — The louis d'or and machine striking / The Paris mint
A closer look at coins 2026-08-21

The Precision and Beauty of Machine-Struck Gold Coins

The Louis d'or, a gold coin born in 1640. Its perfect circular shape, struck by machine, was intended to make it immediately obvious if someone clipped the edges to steal gold. We trace the precision, beauty, and the hidden side of wealth creation embodied in a single coin.

Mitsuru Hayama
France — The gold of the Valois / The mint of the kingdom
Stories of money 2026-08-20

A Face on the Silver, Gold in the Coffer

For the first time, a realistic profile of the king appeared on French coinage. This declaration of royal authority, which began with a single silver coin, would eventually lead to a ransom for a lost war and funding for a brilliant culture.

Mitsuru Hayama
Overview: the world — The monetary civilisation of the East / The Silver Economy of Ming
The origin of words 2026-08-19

The phrase "Worth as much as Potosí"

Potosí, a silver mine in South America, became a byword for "immense wealth." Its silver travelled the world and moved history, but for the land where it was mined, it left not riches, but countless deaths.

Mitsuru Hayama

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