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Natto

traditional Japanese food made from fermented soybeans

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 16, 2026
Entity authorityQ505711
Source-derived summary

Natto (Japanese: 納豆, Hepburn: nattō) is a traditional Japanese food made from whole soybeans that have been fermented with Bacillus subtilis var. natto. It is often served as a breakfast food with rice. It is served with karashi mustard, soy or tare sauce, and sometimes spring onion. Within Japan, natto is most popular in the eastern regions, including Kantō, Tōhoku, and Hokkaido.

Natto is often considered an acquired taste because of its powerful smell, strong flavor, and sticky, slimy texture. A 2009 survey revealed that 70% of the 3,827 respondents found the taste pleasant, and others who may not find the taste pleasant still eat the food out of habit.

History

Sources differ about the earliest origin of natto. One theory is that natto was codeveloped in multiple locations in the distant past, since it is simple to make with ingredients and tools commonly available in Japan since ancient times.

Legendary origins

One story about the origin of natto attributes it to the samurai Minamoto no Yoshiie (1039–1106), who was on a campaign in northeastern Japan between 1086 and 1088 AD. One day, his troops were attacked while boiling soybeans for their horses.

Editorial summary

Begin with the source’s own compact description: “Natto” is traditional Japanese food made from fermented soybeans. The dossier treats that line as a proposition to test through Natto, traditional and Japanese, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2009, 1039, 1106, 1086—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Natto, traditional and Japanese is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “traditional Japanese food made from fermented soybeans” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 16, 2026. The linked authority identifier is Q505711. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2009, 1039, 1106 and 1086.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Natto”, its source revision and the description used here.
  2. Expand the search: follow Natto primary sources, Natto archive and Natto research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Natto”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from Natto” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.