NOMISMA
TOPICS

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?

A 3-Minute Guide to the Money Behind the Restoration

  1. See it
  2. In numbers
  3. What would you do?
  4. Read more

1See it

Swipe to see more

1 / 9

March 3, Ansei 7

On a snowy morning, the Great Elder was attacked outside Sakuradamon Gate in Edo.

2 / 9

Man'en 1

The smallest koban coin in Japan was made. It had only about 1/8 the gold.

To correct the difference in the value of gold and silver with foreign countries.

3 / 9

From Bunsei 11

Satsuma unilaterally rewrote how it would repay its debts.

5,000,000 ryo

Into a 250-year installment plan with no interest.

4 / 9

Late Edo Period

Choshu saved money using a separate account from its official books.

3,000 to 5,000 ryo per year

5 / 9

Keio 1

Satsuma used its name to buy guns that Choshu was forbidden to buy.

7,300 rifles

Or so it's said. The number varies by source.

6 / 9

Keio 1

Foreign trading houses fronted the money for weapons, betting on Japan's civil war.

7 / 9

Late Edo Period

The Shogunate demanded a large forced loan from the great merchant house of Mitsui.

2,660,000 ryo

In just 3 years.

8 / 9

New Year's, Keio 4

The new government announced it would collect money from the wealthy and issue paper money.

3,000,000 ryo → 30,000,000 ryo

9 / 9

Afterward

The great merchants were squeezed by both sides, but in return, they gained special rights to handle finances.

2In numbers

2,660,000ryo

The forced loan the Shogunate demanded from Mitsui over 3 years.

30,000,000ryo

The paper money the new government proposed to issue. The amount to be collected was 3,000,000 ryo.

To be collected from the wealthy3,000,000 ryo
Paper money to be issued30,000,000 ryo

5,000,000ryo

The debt Satsuma rewrote into a 250-year, no-interest plan.

3What would you do?

You are a great merchant at the end of the Edo period. Both the Shogunate and the new government are demanding money from you. What do you do?

Pick one

Give money only to the side that looks like it will win.

In reality, the great merchants were in a position to be squeezed no matter who won. The Shogunate demanded 2,660,000 ryo from Mitsui over 3 years, and the new government also assigned levies of 50,000 ryo to each wealthy merchant.

Give money, but get something in return.

Mitsui, the Ono-gumi, and the Shimada-gumi took charge of the new government's finances and gained the special right to control them. The demands and the privileges were two sides of the same coin.

4Read more

Read the full story ↓

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

Blood, Snow, and Lighter Gold

On the morning of the third day of the third month of Ansei 7, Edo was struck by an unseasonal snow. On this day, outside the Sakurada Gate, the procession of the Great Elder Ii Naosuke was attacked by ronin from Mito and Satsuma. The signing of a commercial treaty without imperial sanction and the Ansei Purge, which saw his opponents arrested—this was their retribution, the attackers claimed.

On the eighteenth day of the third month of the same year, the era name was changed to Man'en. This was due to the strong wishes of Emperor Komei, as disasters—the castle fire and this incident—had continued. And so, a koban bearing the name Man'en was minted. Containing only about one-eighth the gold of a Keicho koban, it was the smallest koban in Japan, nicknamed the 'hina koban' (doll koban). However, the assassination did not order the recoinage. The purpose was to correct the gold-to-silver price ratio, which had become misaligned with the outside world. Political upheaval and currency debasement. The two coincided in the same year.

Defaulted Debts and Off-the-Books Accounts

Where did the war funds for overthrowing the shogunate come from?

In the Satsuma domain, in the eleventh year of Bunsei, Zusho Hirosato was entrusted with rebuilding the domain's finances. He unilaterally declared that the five million ryo debt owed to merchants in Osaka and Edo would be converted into a 250-year, interest-free loan. The means of repayment was brown sugar from Amami Oshima and Tokunoshima. The islanders were forbidden from growing crops other than sugarcane and were forced to pay their taxes in sugar. When his illicit trade with Qing China was later exposed, Zusho took all the blame upon himself and drank poison.

The Choshu domain had a separate account called the 'buikukata,' distinct from its main accounting. At the 'koshini-kata' office in Shimonoseki, they lent money and warehouse space to ships from other domains, accumulating three to five thousand ryo annually. Even when the domain's main accounts were in deficit, this fund did not decrease. They did not win because they were rich. Before ideology, there was accounting skill.

Choshu's Guns, Bought in Satsuma's Name

In the first year of Keio, Thomas Glover's company in Oura, Nagasaki, with the mediation of the Kameyama Shachu, created a scheme. For the Choshu domain, which was under the shogunate's scrutiny and could not buy guns in its own name, a path was made to purchase weapons under the Satsuma domain's name and forward them to Choshu.

Through this scheme, it is said that 4,300 old-style Gewehr rifles and 3,000 new-style Minié rifles, a total of 7,300, were transferred. The numbers vary depending on the source. It is also reported that in the same year, of the 380,000 dollars Satsuma paid for ships, 200,000 were addressed to Glover. The payment was made in foreign silver coins. Glover also sold weapons to the shogunate. He was neither a benefactor of the Restoration nor a master conspirator; rather, foreign trading houses were financing the inventory for Japan's civil war.

Money to Be Collected, Whoever Won

War requires money. The shogunate demanded as much as 2.66 million ryo in forced loans ('goyokin') from the Mitsui family in just three years. On the other hand, in the first month of Keio 4, Yuri Kimimasa of the new government proposed raising 3 million ryo from wealthy merchants in the Kinki region to issue 30 million ryo in paper currency. In the 'kaikei kiritukin' (accounting foundation fund) that Yuri raised, 50,000 ryo was allocated to each of the wealthy merchants in Kyoto and Osaka.

The Mitsui, Ono, and Shimada groups handled the finances at the new government's accounting office and were known as the 'Three Houses of Exchange.' It was not that Mitsui created the imperial army. Having been squeezed by the shogunate as well, they were in a position to have their funds collected regardless of who won. In return, the three houses gained the privilege of controlling the finances of the new nation. Requisition and privilege were two sides of the same koban.

If you would like to read on

The rest of the story is in the material of NOMISMA.

Price

After purchase, the full courses, the illustrated books, every country’s story and the numismatics examination are open to you.

See the price →