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BIBLIOGRAPHY

Japanese Wikipedia, "Kōshūkin," "Ōban," "Tenshō Ōban."

Wikipedia (according to the sources of each article)

Claims Supported by This Source

  1. The origin of Kōshūkin is unknown; during the Edo period, it was attributed to the legacy of Takeda Shingen.
  2. The Tenshō Naga Ōban was the world's largest gold coin until 2004 ("Ōban").
  3. The Tenshō Ōban was in circulation until 1695 ("Tenshō Ōban").

How to read the verification levels. 'Read' means the material was read in its entirety. 'Bibliography and abstract confirmed' means the bibliographic information and abstract were verified. 'Via course material' means the source was referenced through the main text of a book or a country's monetary history. The text hash is the SHA-256 of the main text from the original source page, excluding tags and whitespace, used to detect if the material has been altered.