{
  "id": "nan-madol-stone-islets",
  "title": "Nan Madol: the engineering behind a ceremonial island city",
  "country": "Micronesia",
  "category": "rituel",
  "date": "2016-01-01",
  "date_label": "2016 heritage-inscription anchor; principal construction dates to 1200–1500 CE",
  "location": "Nan Madol, Pohnpei",
  "lat": 6.84,
  "lng": 158.331,
  "summary": "Basalt and coral structures form a monumental ceremonial centre on artificial islets. Their scale raises engineering questions while the site’s local history remains central.",
  "sources": [
    {
      "id": "NM1",
      "title": "UNESCO — Nan Madol",
      "url": "https://whc.unesco.org/en/list/1503",
      "language": "en",
      "note": "Site description, construction period and traditional institutional context.",
      "kind": "Source record · see provenance note"
    },
    {
      "id": "NM2",
      "title": "UNESCO — 2025 conservation decision",
      "url": "https://whc.unesco.org/en/decisions/8686",
      "language": "en",
      "note": "Dated management review; not a new excavation report.",
      "kind": "Source record · see provenance note"
    }
  ],
  "author": "Eklipsis",
  "content_languages": [
    "en"
  ],
  "path": "/investigations/nan-madol-stone-islets",
  "source_url": "https://whc.unesco.org/en/list/1503",
  "location_source_url": "https://www.openstreetmap.org/?mlat=6.84&mlon=158.331#map=8/6.84/158.331",
  "location_precision": "region",
  "location_note": "Approximate orientation marker for the named place or institution; not a surveyed observation point, protected excavation coordinate or recommended access route.",
  "reviewed_on": "2026-09-30",
  "edition": 1,
  "truth_type": "unknown",
  "verdict": "Human construction and a ceremonial context are supported. Detailed stone transport and individual building sequences require further archaeological work. The scale of the structures cannot by itself prove magical transport or an unknown civilisation.",
  "sections": [
    {
      "title": "Documented account",
      "text": "UNESCO records more than a hundred islets with palaces, temples, tombs and residential structures associated with the Saudeleur dynasty. Its assessment describes basalt stones transported from quarries elsewhere on Pohnpei and a distinctive masonry technique. The site is tangible evidence of complex island institutions and construction, not an unexplained city without human creators.",
      "refs": [
        "NM1",
        "NM2"
      ]
    },
    {
      "title": "Evidence and its limits",
      "text": "The point identifies the site area, not a passage through its waterways. A broad construction period should not become one day or one building campaign. The listing’s governance and conservation statements are dated documents; current conditions require the later official reports.",
      "refs": []
    },
    {
      "title": "Inspector’s assessment",
      "text": "Human construction and a ceremonial context are supported. Detailed stone transport and individual building sequences require further archaeological work. The scale of the structures cannot by itself prove magical transport or an unknown civilisation.",
      "refs": []
    },
    {
      "title": "A reproducible next investigation",
      "text": "Create a structure-and-phase register from published plans. Compare quarry sources, stone dimensions and feasible transport routes without proposing unauthorised site access. Include traditional ownership and local historical interpretation with clear authorship, keeping conservation changes separate from ancient construction.",
      "refs": []
    }
  ],
  "timeline": [
    {
      "date": "1200–1500 CE",
      "text": "The heritage assessment places the principal ceremonial structures in this period.",
      "refs": [
        "NM1"
      ]
    },
    {
      "date": "2016",
      "text": "Nan Madol enters the World Heritage List and the danger list.",
      "refs": [
        "NM1"
      ]
    },
    {
      "date": "2025 conservation decision",
      "text": "UNESCO reviews management and conservation priorities.",
      "refs": [
        "NM1"
      ]
    },
    {
      "date": "30 September 2026",
      "text": "Eklipsis prepares this source-linked documentary synthesis. This is editorial review, not historical fieldwork.",
      "refs": []
    }
  ],
  "claims": [
    {
      "text": "Basalt and coral structures form a monumental ceremonial centre on artificial islets. Their scale raises engineering questions while the site’s local history remains central.",
      "status": "Documented subject; interpretations qualified in the dossier",
      "refs": [
        "NM1"
      ]
    },
    {
      "text": "Human construction and a ceremonial context are supported. Detailed stone transport and individual building sequences require further archaeological work. The scale of the structures cannot by itself prove magical transport or an unknown civilisation.",
      "status": "Assessment with explicit limits",
      "refs": [
        "NM1"
      ]
    },
    {
      "text": "The map point represents the exact location of every reported event.",
      "status": "Incorrect; orientation only",
      "refs": []
    }
  ],
  "hypotheses": [
    {
      "title": "Organised quarrying and construction",
      "status": "Supported archaeological framework",
      "support": "Masonry and quarry relationships form part of the site record.",
      "limits": "Individual transport operations are not fully reconstructed.",
      "test": "Compare stone provenance with building phases and feasible route models."
    },
    {
      "title": "One uniform building campaign",
      "status": "Oversimplification to test",
      "support": "A monumental centre can appear unified to a visitor.",
      "limits": "A long construction period permits different sequences.",
      "test": "Compare dated structures rather than assigning every wall the same history."
    }
  ],
  "tasks": [
    {
      "title": "Audit the source record",
      "body": "Retrieve the named records for Nan Madol: the engineering behind a ceremonial island city. Record author, edition, page or section and access date. Treat a catalogue, mirror or translation of one document as the same evidence, not independent corroboration."
    },
    {
      "title": "Build the dated evidence ledger",
      "body": "Create a structure-and-phase register from published plans. Compare quarry sources, stone dimensions and feasible transport routes without proposing unauthorised site access. Include traditional ownership and local historical interpretation with clear authorship, keeping conservation changes separate from ancient construction."
    },
    {
      "title": "Test the interpretation",
      "body": "Compare stone provenance with building phases and feasible route models. Compare dated structures rather than assigning every wall the same history. Record what would favour or weaken each explanation; leave unperformed work marked as proposed."
    }
  ]
}