Evidence coverage: 1871–1946. This is the span of collected observations, not the currency’s lifetime.
This record includes associated currencies and earlier interpretations. The article selects the evidence relevant to its own history.
Merge issuer-defined Taiwan yen profile into Japanese yen for the established common-unit period. Contemporary1933–1934report expressly identifies the same monetary unit;1933USsurvey confirms Japanese currency law. Preserve1898–1904silver dealings as held regional accounting scope, not an automatic founding date of this merged unit.
These stages belong to this profile, not separate branches.
Evidence within this identity, not separate currencies.
Mitsui Kyoto moneychanger accounts switched fully from ryo to yen in March–April1873, after earlier yen instruments had still been settled in ryo. This supplies an actual ledger transition supporting existing ryo→yen succession.
Sources and qualifications →Taiwan's existing yen identity is attested by circulating Bank of Taiwan notes denominated in yuan/yen in1899. This is a denomination/circulation observation, not an independently inspected1899ledger or proof of its precise founding date. A parent edge from Japan or earlier silver-dollar units remains open.
Sources and qualifications →Merge issuer-defined Taiwan yen profile into Japanese yen for the established common-unit period. Contemporary1933–1934report expressly identifies the same monetary unit;1933USsurvey confirms Japanese currency law. Preserve1898–1904silver dealings as held regional accounting scope, not an automatic founding date of this merged unit.
Sources and qualifications →Dated evidence, not exact birth or extinction dates.
Mitsui Kyoto moneychanger accounts switched fully from ryo to yen in March–April1873, after earlier yen instruments had still been settled in ryo. This supplies an actual ledger transition supporting existing ryo→yen succession.
C1418Taiwan's existing yen identity is attested by circulating Bank of Taiwan notes denominated in yuan/yen in1899. This is a denomination/circulation observation, not an independently inspected1899ledger or proof of its precise founding date. A parent edge from Japan or earlier silver-dollar units remains open.
C1266Includes dated issues, standards, subdivisions and institutional changes. Each event retains the source's date qualifications.
The 1871 act introduced yen as the basic unit.
C02The 1897 gold standard defined one yen as 0.75 grams of gold.
C59Japan suspended gold convertibility in 1917.
C60Japan returned to the gold standard in January 1930.
C61Japan stopped gold conversion in December 1931.
C62The 1942 Bank of Japan law formalized managed currency.
C63The 1946 emergency measures introduced new banknotes and withdrawal restrictions.
C64Japan fixed the exchange rate at 360 yen per dollar in April 1949.
C65The December 1971 Smithsonian agreement set 308 yen per dollar.
C66Japan moved to flexible exchange rates in 1973.
C67Dated observations, not a proven complete lifespan.
The 1871 act introduced yen as the basic unit.
Q5, first paragraph
Use questions individually; broad overview, not a reform-law facsimile
The 1871 reform adopted decimal yen in place of ryo.
Meiji 4: Major events
Commissioning and issue dates differ; headings are not always issue dates
The first Bank of Japan notes appeared in May 1885, denominated at ten yen.
History (3)
Separate bank establishment, first note issue and withdrawal of competing notes.
Broad sole-issuer wording must not erase overlap before 1899.
The 1897 gold standard defined one yen as 0.75 grams of gold.
Establishment of the gold standard
Causal interpretations need specialist corroboration
Japan suspended gold convertibility in 1917.
Printed p.14, section 3.3
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
Japan returned to the gold standard in January 1930.
Printed p.14, section 3.3
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
Japan stopped gold conversion in December 1931.
From gold standard to managed currency
Causal interpretations need specialist corroboration
The 1942 Bank of Japan law formalized managed currency.
From gold standard to managed currency
Causal interpretations need specialist corroboration
The 1946 emergency measures introduced new banknotes and withdrawal restrictions.
Printed p.17, section 3.5
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
Japan fixed the exchange rate at 360 yen per dollar in April 1949.
Printed p.19
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
The December 1971 Smithsonian agreement set 308 yen per dollar.
Printed p.21, section 4.2.1
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
Japan moved to flexible exchange rates in 1973.
Printed p.21, section 4.2.1
Selected passages inspected; not an official Bank of Japan position.
Exchange regimes are historical context, not investment guidance or ancestry.
The Kitasato 1,000-yen note was first issued on July 3, 2024.
1,000 Yen Note: Kitasato entry
Current listing inspected on access date.
A new design is not a new monetary unit.
No image rights assumed.
The NPB catalogues an old-type twenty-yen national banknote with an 1873 issue date.
Heading and issue-date table
1873 is the catalogue issue date, not a separately established manufacture date for the illustrated sheet.
No accession supplied.
Image inspected but not reproduced.
NLB describes Spanish/Mexican dollar use and the 1874 acceptance of Japanese yen and U.S. trade dollars in the Straits.
Foreign coin section
Selected issue chronology; 1899 note date used with attribution.
Occupation notes did not erase all prewar legal status.
Mitsui Kyoto moneychanger accounts switched fully from ryo to yen in March–April1873, after earlier yen instruments had still been settled in ryo. This supplies an actual ledger transition supporting existing ryo→yen succession.
PDF44 section2-2ロ; PDF48endnote162 identifies 貨幣出入帳 MitsuiBunko別966 and 新土蔵楮幣出納帳 続6640
Not a complete origin, lifespan or current-status audit.
Japanese extracted text inspected; original 1868 gazette not independently inspected.
The Korean yen/won account lineage inherited Japanese-yen reckoning adopted in the1905 reform. Korean treasury and banking accounts continued that reckoning through the colonial period; after1945 the inherited local unit continued under a separately controlled Korean monetary system. This supports regional ancestry from the Japanese yen, without treating the1909 change of bank issuer as creation of a new unit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
1905 reform and treasury evidence;1909 inheritance of deposits/loans; SWNCC176/8 Part III §§32–35;1945–46 implementation; Park printed pp.19–20
Not a complete origin, lifespan or current-status audit.
Taiwan dollars replaced Taiwanese yen in May 1946. The 1949 dollar rescaling belongs to the same Taiwan-dollar profile.
Historical description: Taiwan dollars replaced Taiwanese yen in May 1946; 1949 rescaling
Not a complete origin, lifespan or current-status audit.
Taiwan's existing yen identity is attested by circulating Bank of Taiwan notes denominated in yuan/yen in 1899. This is a denomination/circulation observation, not an independently inspected1899ledger or proof of its precise founding date. A parent edge from Japan or earlier silver-dollar units remains open.
Chinese narrative paragraphs at retrieved lines64–79, especially67–71; underlying bank statute or accounts not inspected.
Not a complete origin, lifespan or current-status audit.
Chinese narrative paragraphs at retrieved lines 64–79, especially67–71; underlying bank statute or accounts not inspected.
Merge issuer-defined Taiwan yen profile into Japanese yen for the established common-unit period. Contemporary1933–1934report expressly identifies the same monetary unit;1933USsurvey confirms Japanese currency law. Preserve1898–1904silver dealings as held regional accounting scope, not an automatic founding date of this merged unit.
Printed p112, PDF page114, General Statistics: Monetary Unit and Rate of Exchange; China customs-gold discussion, printed p.40 footnote 38; Ceylon and Mauritius country sections (Mauritius printed p.79); Chapter9, pp160–164
Not a complete origin, lifespan or current-status audit.
Printed p112, PDF page114, General Statistics: Monetary Unit and Rate of Exchange; China customs-gold discussion, printed p.40 footnote 38; Ceylon and Mauritius country sections (Mauritius printed p.79); Chapter9, pp160–164
Not a complete origin, lifespan or current-status audit.
Printed p112, PDF page114, General Statistics: Monetary Unit and Rate of Exchange; China customs-gold discussion, printed p.40 footnote 38; Ceylon and Mauritius country sections (Mauritius printed p.79); Chapter9, pp160–164
Not a complete origin, lifespan or current-status audit.