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Itabashi

special ward in the Tokyo Metropolis in Japan

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 23, 2026
Entity authorityQ232635 ↗
Source-derived summary

Itabashi (板橋区, Itabashi-ku; Japanese pronunciation: [i.taꜜ.ba.ɕi, -ta.ba.ɕi̥ꜜ.kɯ, -baꜜ.ɕi̥.kɯ]) is a special ward in the Tokyo Metropolis in Japan. In English, it is called Itabashi City. Itabashi has sister-city relations with Burlington, Ontario, in Canada; Shijingshan District of Beijing in the People's Republic of China; and Bologna in Italy.

As of May 1, 2015, the ward has an estimated population of 547,270, and a population density of 16,990 persons per km2. The total area is 32.22 km2.

Geography

Itabashi lies on the Kantō plain. The Arakawa River, a major river, forms part of the boundary with Saitama Prefecture. Surrounding the ward are, in Saitama, the cities of Wakō and Toda; and in Tokyo, the wards of Nerima, Toshima, and Kita.

Districts and neighborhoods

Notes:

a – (2, 3, 4, 5, 6, 7, 8)

b – (formerly part of Shimura Nishidai area)

c – (1 & 9)

History

The name of the ward means "plank bridge" and derives from the wooden span over the Shakujii River that dates from the Heian period. Such a bridge was remarkable at the time, and the name has lasted since.

Editorial summary

Begin with the source’s own compact description: “Itabashi” is special ward in the Tokyo Metropolis in Japan. The dossier treats that line as a proposition to test through Itabashi, special and ward, 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—2015—that can be checked directly. The authority record carries competing date values—1943-07-01, 1947-05-03, 1932-10-01—which should remain separate until their references and qualifiers are resolved. For this dossier, Itabashi, special and ward is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “special ward in the Tokyo Metropolis in Japan” 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

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q232635. VIAF identifies the subject as 124328298. The Library of Congress control number is n80013639. Authority coordinates are 35.751, 139.709. 2 of 8 selected statements include explicit references; 4 carry qualifiers and 1 use preferred rank. The first chronological checks are 2015.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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 “Itabashi”, its source revision and the description used here.
  2. Expand the search: follow Itabashi primary sources, Itabashi archive and Itabashi 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 “Itabashi”?
  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 “Itabashi” 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.