Irisuna-jima
island
Irisuna-jima (入砂島), also known as Idesuna-jima (出砂島), is an uninhabited island in Tonaki, Okinawa Prefecture, Japan. It lies approximately four kilometres to the west of Cape Watanjisaki (ワタンジ崎), the northwest tip of Tonaki Island. Ceramics, including kamui ware and celadons, are evidence of human activity on the island over the longue durée. Public access is now prohibited since, under the designation FAC (Facilities Admin Code) 6078, Idesuna Jima Range (出砂島射爆撃場) is a live-fire training area for the United States Forces Japan.
“Irisuna-jima” enters the record as island. Crown Archives preserves that source wording while asking what Irisuna-jima and island can confirm, complicate or overturn.
Why this record matters
“Irisuna-jima” is worth following because a concise public description often conceals a longer documentary argument. Here, Irisuna-jima and island provides the most credible route into that argument.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Jul 14, 2026. The linked authority identifier is Q1532472. Authority coordinates are 26.385, 127.103. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Irisuna-jima”, its source revision and the description used here.
- Expand the search: follow Irisuna-jima primary sources, Irisuna-jima archive and Irisuna-jima research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Irisuna-jima”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Irisuna-jima” 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.