Japan, a little closer. Places · objects · everyday stories
Coins & History
Read Japanese history through coins and calendars
Small objects can open large questions about everyday life.
English summary—not a full translation. Read the full Japanese feature →
Rather than compressing all of Japanese history into a timeline, begin with two familiar tools: money and the calendar.
Published by KANETOMI, operator of SPARKLE. Links to the SPARKLE online store promote our own products. This source-based guide is not a report of an on-site visit.
A coin is a question, not just a date
Wadokaichin was issued in 708, but excavations established that Fuhonsen existed earlier. Ask what “first” means: made, used or widely circulated.
Edo-period money used gold, silver and cash coins with different units and exchange practices. Kan’ei Tsuho became widely used after official production expanded from 1636. There is no single reliable modern-yen equivalent for a ryo across all periods and comparisons.
Sources: 日本銀行金融研究所 貨幣博物館 お金の歴史に関するFAQ · 文化遺産オンライン 寛永通宝 東北歴史博物館所蔵 · 日本銀行金融研究所 貨幣博物館 江戸時代の1両は今のいくら
Connections and changing systems
Edo Japan maintained several channels of exchange with neighboring peoples and countries. “Closed country” should not be read as complete isolation. The late-Edo gold outflow also needs to be understood through exchange arrangements and international differences in gold and silver values.
The yen was introduced in 1871; the Bank of Japan opened in 1882; its first banknotes followed in 1885. These were distinct stages in a changing monetary system.
Sources: 国立歴史民俗博物館 第3展示室 国際社会のなかの近世日本 · 日本銀行金融研究所 貨幣博物館 日本貨幣史 · 日本銀行金融研究所 貨幣博物館 お金の歴史に関するFAQ · 日本銀行金融研究所 貨幣博物館 日本銀行と日本橋
Even an ordinary date has a history
The calendar reform announced in 1872 took effect in 1873. The earlier lunisolar calendar added an intercalary month in some years, not every year.
Look for what an object was used for, what evidence dates it, and what remains uncertain. This is an invitation to explore cultural history, not an assessment of coin prices, authenticity or investment value.
Sources: 国立国会図書館 日本の暦 江戸から明治の改暦 · 国立国会図書館 日本の暦 暦の渡来と普及
Useful next step
English summary of the Japanese feature, not a full translation. Sources checked on 26 October 2026.
Sources & checking this guide
- 日本銀行金融研究所 貨幣博物館 お金の歴史に関するFAQ
- 文化遺産オンライン 寛永通宝 東北歴史博物館所蔵
- 日本銀行金融研究所 貨幣博物館 江戸時代の1両は今のいくら
- 国立歴史民俗博物館 第3展示室 国際社会のなかの近世日本
- 日本銀行金融研究所 貨幣博物館 日本貨幣史
- 日本銀行金融研究所 貨幣博物館 日本銀行と日本橋
- 国立公文書館 日本銀行が開業する
- 国立国会図書館 日本の暦 江戸から明治の改暦
- 国立国会図書館 日本の暦 暦の渡来と普及
Linked official sources were checked for the editorial content on 26 October 2026. Opening times, shop stock and travel conditions may change; use the current official pages.