Unit 731

chemical and biological warfare research and development unit of the Imperial Japanese Army (1935-1945)
Organization military_unit Q378835
Unit 731
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Unit 731

Summary

Unit 731 is a military unit[1]. It has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Unit 731's field of work was biological warfare[3].
  • Unit 731's field of work was chemical warfare[4].
  • Unit 731's field of work was unethical human experimentation[5].
  • Unit 731's field of work was vivisection[6].
  • Unit 731's field of work was tissue and organ harvesting[7].
  • Unit 731's field of work was amputation[8].
  • Unit 731 is in the country of Japan[9].
  • Unit 731's instance of is recorded as military unit[10].
  • Unit 731's founder is recorded as Kempeitai[11].
  • Unit 731's headquarters location is recorded as Pingfang District[12].
  • Unit 731's military branch is recorded as Imperial Japanese Army[13].
  • Unit 731 is part of Kwantung Army[14].
  • Unit 731's Commons category is recorded as Unit 731[15].
  • 1936 marks the founding of Unit 731[16].
  • Unit 731 was dissolved in 1945[17].
  • Unit 731 was part of the conflict Second Sino-Japanese War[18].
  • Unit 731 was part of the conflict World War II[19].
  • Unit 731's coordinate location is recorded as {'lat': 45.6, 'lon': 126.633333}[20].
  • Unit 731's parent organization or unit is recorded as Unit 659[21].
  • Unit 731's significant event is recorded as Nomonhan bacteriological warfare[22].
  • Unit 731's significant event is recorded as 1940 Zhejiang bacteriological warfare[23].
  • Unit 731's significant event is recorded as Kaimingjie germ weapon attack[24].
  • Unit 731's significant event is recorded as Changde germ and chemical attacks[25].
  • Unit 731's significant event is recorded as American cover-up of Japanese war crimes[26].
  • Unit 731's significant event is recorded as Khabarovsk War Crime Trials[27].

Body

Founding

Unit 731's founder is recorded as Kempeitai[11]. 1936 marks the founding of it[16].

Identity

Unit 731 is part of Kwantung Army[14].

Operations

Unit 731's headquarters location is recorded as Pingfang District[12]. Its parent organization or unit is recorded as Unit 659[21].

Industry

Fields of work include biological warfare[3]; chemical warfare[4]; unethical human experimentation[5]; vivisection[6]; tissue and organ harvesting[7], a surgery[28]; and amputation[8], a disability[29].

Dissolution

Unit 731 was dissolved in 1945[17].

Why It Matters

Unit 731 has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[2] It is known by 42 alternative names across languages and contexts.[30]

References

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

Direct Wikidata claims

  1. [9] . wikidata.org.
  2. [10] . Retrieved . wikidata.org.
  3. [3] . Unit 731: Where Entomology Became Evil. wikidata.org.
  4. [4] . wikidata.org.
  5. [5] . Japanese veteran admits vivisection tests on PoWs. Retrieved . theguardian.com. Provenance: wikidata.org.
  6. [6] . Retrieved . wikidata.org.
  7. [7] . Retrieved . wikidata.org.
  8. [8] . Retrieved . wikidata.org.
  9. [11] . Retrieved . wikidata.org.
  10. [12] . Former headquarters site of Unit 731. wikidata.org.
  11. [13] . Retrieved . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . Retrieved . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . warfarehistorynetwork.com. Retrieved . warfarehistorynetwork.com. Provenance: wikidata.org.
  21. [23] . e-flux.com. Retrieved . e-flux.com. Provenance: wikidata.org.
  22. [24] . pacificatrocities.org. Retrieved . pacificatrocities.org. Provenance: wikidata.org.
  23. [25] . sciencehistory.url.tw. Retrieved . sciencehistory.url.tw. Provenance: wikidata.org.
  24. [26] . U.S. Responses to Japanese Wartime Inhuman Experimentation after World War II. Retrieved . ncbi.nlm.nih.gov. Provenance: wikidata.org.
  25. [27] . www2.nhk.or.jp. Retrieved . www2.nhk.or.jp. Provenance: wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikidata sitelinks. wikidata.org.
  2. [30] . Wikidata aliases. 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). Unit 731. Retrieved April 10, 2026, from https://4ort.xyz/entity/unit-731
MLA “Unit 731.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/unit-731.
BibTeX @misc{4ortxyz_unit-731_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Unit 731}}, year = {2026}, url = {https://4ort.xyz/entity/unit-731}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Unit 731 — https://4ort.xyz/entity/unit-731 (retrieved 2026-04-10)

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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. 14d ago · Saldanha-mareo · 2026-06-20 view diff on Wikidata ↗
    Point in time +1933-00-00T00:00:00Z
    "/* wbsetclaim-create:1||1 */ [[Property:P585]]: 1933, ([[:toollabs:editgroups/b/harvesttemplates/4b36b1045d63|details]])"
  2. 15d ago · Yirba · 2026-06-20 view diff on Wikidata ↗
    Local thumb
    P14541 2uLhXq
    Significant person Shirō Ishii, Masaji Kitano, Yūjirō Wakamatsu +10
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37444|batch #37444]]: Encyclopedia of China (Third Edition) ID (2026) ([[Property:P14541]]) 2"
  3. 9w ago · ~2026-26657-73 · 2026-05-01 view diff on Wikidata ↗
    Significant place Former headquarters site of Unit 731, Quzhou Japanese Backteriological Warfare Exhibition Hall
    Military branch Imperial Japanese Army
    Dissolved
    Dissolved, abolished or demolished date +1945-00-00T00:00:00Z
    + 33 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P3342]]: [[Q2010]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.