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HNLMS O 21

ship
Vehicle submarine Q1632246
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HNLMS O 21

Summary

HNLMS O 21 is a submarine[1].

Key Facts

  • HNLMS O 21 is in the country of Netherlands[2].
  • HNLMS O 21's instance of is recorded as submarine[3].
  • HNLMS O 21's Commons category is recorded as Hr.Ms. O 21 (submarine, 1940)[4].
  • HNLMS O 21 was part of the conflict World War II[5].

Related Entities

Netherlands

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). HNLMS O 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/hnlms-o-21
MLA “HNLMS O 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hnlms-o-21.
BibTeX @misc{4ortxyz_hnlms-o-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HNLMS O 21}}, year = {2026}, url = {https://4ort.xyz/entity/hnlms-o-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HNLMS O 21 — https://4ort.xyz/entity/hnlms-o-21 (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 22d ago · Ignasi · 2026-07-01 view diff on Wikidata ↗
    Vessel class → Q7073199
    Operator → Q931281
    Manufacturer → Q1158347
    Draft → +4
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P793]]: [[Q566889]]"
  2. 25d ago · Ignasi · 2026-06-28 view diff on Wikidata ↗
    Country of registry → Q55
    Participated in conflict → World War II
    Aliases → —
    Instance of → —
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P8047]]: [[Q55]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.