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BIBLIOGRAPHY

Wikipedia「Legal tender」「List of circulating currencies」

Wikipedia (according to the sources of each article)

Claims Supported by This Source

  1. Demonetization is the act of stripping a currency of its legal tender status; it occurs whenever a country's currency changes.
  2. There are 180 legal tender currencies of UN member states ("List of circulating currencies").

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.