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Chicago Pile 3

first heavy water reactor in the world, going critical on 15 May 1944
Organization heavy_water_reactor Q5095738
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Chicago Pile 3

Summary

Chicago Pile 3 is a heavy water reactor[1]. It has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Chicago Pile 3 is located in Palos Hills[3].
  • Chicago Pile 3 is in the country of United States[4].
  • Chicago Pile 3's instance of is recorded as heavy water reactor[5].
  • Chicago Pile 3's instance of is recorded as research reactor[6].
  • Chicago Pile 3 is part of Manhattan Project[7].
  • Chicago Pile 3's Commons category is recorded as Chicago Pile-3[8].
  • Chicago Pile 3's coordinate location is recorded as {'lat': 41.702111111111115, 'lon': -87.91227777777779}[9].
  • Chicago Pile 3's located in/on physical feature is recorded as Argonne National Laboratory[10].
  • Chicago Pile 3's service entry is recorded as May 15, 1944[11].
  • Chicago Pile 3's service retirement is recorded as January 1950[12].

Body

Identity

Chicago Pile 3 is part of Manhattan Project[7].

Why It Matters

Chicago Pile 3 has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[2]

Related Entities

Argonne National Laboratory United States

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [3] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. 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). Chicago Pile 3. Retrieved April 11, 2026, from https://4ort.xyz/entity/chicago-pile-3
MLA “Chicago Pile 3.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/chicago-pile-3.
BibTeX @misc{4ortxyz_chicago-pile-3_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Chicago Pile 3}}, year = {2026}, url = {https://4ort.xyz/entity/chicago-pile-3}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Chicago Pile 3 — https://4ort.xyz/entity/chicago-pile-3 (retrieved 2026-04-11)

Canonical URL: https://4ort.xyz/entity/chicago-pile-3 · Last refreshed:

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. 5d ago · Dirac · 2026-07-20 view diff on Wikidata ↗
    Located in/on physical feature → Argonne National Laboratory
    Located in the administrative territorial entity → Palos Hills
    Part of → —
    Country → United States
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P18]]: Argonne history Chicago Pile-3.jpg, [[:toollabs:quickstatements/#/batch/261337|batch #261337]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.