# Fortification

{
  "id": "S85050919",
  "title": "Fortification",
  "url": "/topics/S85050919",
  "kind": "topic-directory",
  "aeo_cohort": "topic-directory",
  "provider": "lcsh",
  "revision": "3925bb64c7fd625a",
  "catalogue_revision": "f050b5d4780b1289",
  "numeric_address": "9514008436506247680",
  "address_version": "morton4x16-v1",
  "coordinates": [
    0,
    20,
    18200,
    39936
  ],
  "answer_status": "Directory metadata; local answer requires separate source review",
  "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap"
}

Here are entered general works on forts and fortification, including earthwork fortifications. Works on earthwork in engineering operations are entered under [Earthwork.] Works on prehistoric and early earthwork remains are entered under [Earthworks (Archaeology).]

Directory metadata is not a factual answer or evidence of a global knowledge gap.

Source: https://id.loc.gov/authorities/subjects/sh85050919

No owner-reviewed local answer yet.