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Work with history, Treaty material and ingoa wāhi

Historical GIS is often less about finding one definitive old map and more about reconnecting fragments of evidence to place.

Aerial photographs, survey plans, Māori Land Court records, newspapers, oral histories, old topographic maps, official names and locally held ingoa wāhi may each show something different. Their value comes from keeping those differences visible.

A practical route​

  1. Begin with the event, place, relationship or question you are trying to understand.
  2. Record each source before extracting locations from it.
  3. Keep the original wording, date and provenance of names and descriptions.
  4. Georeference historical maps or imagery only as accurately as the source justifies.
  5. Distinguish official names from locally held, historical or context-specific ingoa wāhi.
  6. Keep uncertainty visible rather than forcing every historical reference into an exact point.
  7. Use GIS to bring evidence together, then return to the archival and local context when interpreting what it means.

Large public reports can be difficult to work through manually. Local AI and Māori GIS shows a practical way to search reports on your own computer and identify candidate passages or ingoa wāhi without treating the model as the authority. The ingoa wāhi extraction workflow preserves source spelling, page references, context and uncertainty before any name is matched to geography.

Do not manufacture certainty​

A historical location derived from a sketch, description or distorted aerial photograph may be useful without being exact.

Where the evidence is uncertain, record the uncertainty. A confident-looking GIS symbol should not quietly become stronger evidence than the source it came from.

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