Stagg Field, University of Chicago
E37321
Stagg Field at the University of Chicago is the historic site where the Manhattan Project’s Metallurgical Laboratory achieved the world’s first controlled, self-sustaining nuclear chain reaction in 1942.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Stagg Field, University of Chicago canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T286500 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Stagg Field, University of Chicago Context triple: [Met Lab, locationOfEvent, Stagg Field, University of Chicago]
-
A.
Chicago Coliseum
Chicago Coliseum was a historic multi-purpose indoor arena in Chicago that hosted a variety of sporting events, political conventions, and large public gatherings in the early to mid-20th century.
-
B.
Krannert Center for the Performing Arts
Krannert Center for the Performing Arts is a major multidisciplinary performing arts complex known for hosting theater, music, and dance productions at the University of Illinois at Urbana–Champaign.
-
C.
Harvard Stadium
Harvard Stadium is a historic U-shaped college football stadium in Allston, Massachusetts, serving as the longtime home field of Harvard University's athletic teams.
-
D.
Municipal Grant Park Stadium
Municipal Grant Park Stadium was the original name of Soldier Field, the historic multi-purpose stadium on Chicago’s lakefront best known as the longtime home of the NFL’s Chicago Bears.
-
E.
Villa Park, Illinois
Villa Park, Illinois is a suburban village in the Chicago metropolitan area known for its residential neighborhoods, local parks, and access to regional trails and transit.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Stagg Field, University of Chicago Target entity description: Stagg Field at the University of Chicago is the historic site where the Manhattan Project’s Metallurgical Laboratory achieved the world’s first controlled, self-sustaining nuclear chain reaction in 1942.
-
A.
Chicago Coliseum
Chicago Coliseum was a historic multi-purpose indoor arena in Chicago that hosted a variety of sporting events, political conventions, and large public gatherings in the early to mid-20th century.
-
B.
Krannert Center for the Performing Arts
Krannert Center for the Performing Arts is a major multidisciplinary performing arts complex known for hosting theater, music, and dance productions at the University of Illinois at Urbana–Champaign.
-
C.
Harvard Stadium
Harvard Stadium is a historic U-shaped college football stadium in Allston, Massachusetts, serving as the longtime home field of Harvard University's athletic teams.
-
D.
Municipal Grant Park Stadium
Municipal Grant Park Stadium was the original name of Soldier Field, the historic multi-purpose stadium on Chicago’s lakefront best known as the longtime home of the NFL’s Chicago Bears.
-
E.
Villa Park, Illinois
Villa Park, Illinois is a suburban village in the Chicago metropolitan area known for its residential neighborhoods, local parks, and access to regional trails and transit.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
athletic field
ⓘ
historical site ⓘ |
| associatedWith |
Arthur H. Compton
ⓘ
Chicago Pile-1 ⓘ Enrico Fermi ⓘ Manhattan Project ⓘ Metallurgical Laboratory ⓘ
linked to:
Chicago Metallurgical Laboratory
|
| city |
Chicago
ⓘ
linked to:
Chicago, Illinois, United States
|
| coordinateLocation | 41.789°N 87.599°W ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dateOfSignificantEvent | 1942-12-02 ⓘ |
| demolished | yes (original stadium) ⓘ |
| eraOfSignificance |
World War II
ⓘ
early nuclear age ⓘ |
| formerFunction | home field of University of Chicago Maroons football team ⓘ |
| hasPart |
Stagg Field playing field
ⓘ
Stagg Field squash courts ⓘ Stagg Field stands ⓘ |
| hasUse |
American football
ⓘ
baseball ⓘ college athletics ⓘ recreation ⓘ track and field ⓘ |
| heritageDesignation |
National Historic Landmark (site of CP-1, former location)
ⓘ
linked to:
National Historic Landmark
|
| locatedIn |
Chicago
ⓘ
linked to:
Chicago, Illinois, United States
Illinois ⓘ United States ⓘ
linked to:
United States of America
University of Chicago ⓘ |
| namedAfter | Amos Alonzo Stagg ⓘ |
| notableEvent | Chicago Pile-1 first criticality ⓘ |
| notableFor | site of the first controlled, self-sustaining nuclear chain reaction ⓘ |
| operatedBy | University of Chicago ⓘ |
| ownedBy | University of Chicago ⓘ |
| partOf |
University of Chicago campus
ⓘ
linked to:
University of Chicago
|
| significantEvent |
construction of Chicago Pile-1
ⓘ
first man-made self-sustaining nuclear chain reaction ⓘ |
| sport |
American football
ⓘ
baseball ⓘ track and field ⓘ |
| state | Illinois ⓘ |
| usedBy |
Metallurgical Laboratory
ⓘ
linked to:
Chicago Metallurgical Laboratory
|
| usedFor | Manhattan Project research ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Stagg Field, University of Chicago Description of subject: Stagg Field at the University of Chicago is the historic site where the Manhattan Project’s Metallurgical Laboratory achieved the world’s first controlled, self-sustaining nuclear chain reaction in 1942.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.