Aberdeen Proving Ground, Maryland

E278854

United States Army installation military base

Aberdeen Proving Ground, Maryland is a major U.S. Army installation known for weapons testing, research, and development, particularly in ordnance and chemical defense.

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All labels observed (4)

Label	Occurrences
Aberdeen Proving Ground	12
Aberdeen Proving Ground, Maryland canonical	6
Edgewood Chemical Biological Center	2
Aberdeen Proving Ground Edgewood Area	1

How this entity was disambiguated

This entity first appeared as the object of triple T2574336 — 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: Aberdeen Proving Ground, Maryland
Context triple: [U.S. Army Chemical Materials Activity, headquartersLocation, Aberdeen Proving Ground, Maryland]

A. Fort Detrick
Fort Detrick is a U.S. Army installation in Frederick, Maryland, best known as a center for biomedical research and biodefense programs.
B. U.S. Army Yuma Proving Ground
U.S. Army Yuma Proving Ground is a major U.S. Army testing facility in southwestern Arizona known for evaluating military equipment, weapons systems, and munitions in desert conditions.
C. Marine Corps Base Quantico
Marine Corps Base Quantico is a major United States Marine Corps installation in Virginia known as a primary center for Marine training, education, and research.
D. Dugway Proving Ground
Dugway Proving Ground is a large U.S. Army facility in Utah primarily used for testing chemical, biological, radiological, and defense systems in a remote desert environment.
E. Fort Meade, Maryland
Fort Meade, Maryland is a major U.S. Army installation best known as the primary center for American military intelligence and cybersecurity operations.
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: Aberdeen Proving Ground, Maryland
Target entity description: Aberdeen Proving Ground, Maryland is a major U.S. Army installation known for weapons testing, research, and development, particularly in ordnance and chemical defense.

A. Fort Detrick
Fort Detrick is a U.S. Army installation in Frederick, Maryland, best known as a center for biomedical research and biodefense programs.
B. U.S. Army Yuma Proving Ground
U.S. Army Yuma Proving Ground is a major U.S. Army testing facility in southwestern Arizona known for evaluating military equipment, weapons systems, and munitions in desert conditions.
C. Marine Corps Base Quantico
Marine Corps Base Quantico is a major United States Marine Corps installation in Virginia known as a primary center for Marine training, education, and research.
D. Dugway Proving Ground
Dugway Proving Ground is a large U.S. Army facility in Utah primarily used for testing chemical, biological, radiological, and defense systems in a remote desert environment.
E. Fort Meade, Maryland
Fort Meade, Maryland is a major U.S. Army installation best known as the primary center for American military intelligence and cybersecurity operations.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	United States Army installation ⓘ military base ⓘ
country	United States of America ⓘ
dateEstablished	1917 ⓘ
environment	coastal and riverine terrain ⓘ
establishedDuring	World War I ⓘ
garrison	U.S. Army Garrison Aberdeen Proving Ground ⓘ
hasCategory	Military research installations of the United States ⓘ Proving grounds ⓘ United States Army installations in Maryland ⓘ Weapons testing sites ⓘ
hasSubfacility	Aberdeen Area ⓘ Edgewood Area ⓘ
hasType	proving ground ⓘ
hosts	Edgewood Area (chemical and biological defense activities) ⓘ linked to: Edgewood Arsenal vicinity U.S. Army Communications-Electronics Command ⓘ linked to: U.S. Army Communications-Electronics Research, Development and Engineering Center U.S. Army Research Laboratory elements ⓘ linked to: U.S. Army Research Laboratory U.S. Army Test and Evaluation Command ⓘ
knownFor	chemical weapons defense ⓘ ordnance development ⓘ weapons testing ⓘ
locatedIn	Harford County, Maryland ⓘ State of Maryland ⓘ linked to: Maryland
locatedNear	City of Aberdeen, Maryland ⓘ linked to: Aberdeen, Maryland Havre de Grace, Maryland ⓘ
locatedOn	Chesapeake Bay ⓘ
militaryBranch	United States Army ⓘ
namedAfter	City of Aberdeen, Scotland ⓘ
nearbyCity	Baltimore, Maryland ⓘ linked to: Baltimore, Maryland, United States
operatedBy	United States Army ⓘ
ownedBy	United States Department of the Army ⓘ
partOf	U.S. Army Installation Management Command ⓘ U.S. Army Test and Evaluation Command ⓘ U.S. Army’s research, development, test and evaluation infrastructure ⓘ
primaryFunction	chemical defense research ⓘ ordnance testing ⓘ research and development ⓘ weapons testing ⓘ
supports	U.S. Army acquisition programs ⓘ joint military testing ⓘ
timeZone	Eastern Time Zone ⓘ
usedFor	chemical defense experimentation ⓘ testing of artillery ⓘ testing of military vehicles ⓘ testing of munitions ⓘ testing of small arms ⓘ

How these facts were elicited