Fort Warren
E283037
Fort Warren is a historic 19th-century coastal fortification on Georges Island in Boston Harbor that served as a key defensive stronghold and later as a Civil War prison.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Fort Warren canonical | 7 |
| Fort Warren, Boston Harbor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2617999 — 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: Fort Warren Context triple: [Third System of US seacoast defense, hasPart, Fort Warren]
-
A.
Fort Jay
Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
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B.
Charlestown Navy Yard
Charlestown Navy Yard is a historic former U.S. Navy shipyard in Boston, Massachusetts, known for its role in American naval history and as the home port of the USS Constitution.
-
C.
Fort Point
Fort Point is a prominent headland in Gloucester, Massachusetts, that helps form the entrance to Gloucester Harbor and has historically hosted defensive and navigational structures.
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D.
Fort Hamilton
Fort Hamilton is a 19th-century British coastal artillery fort in Hamilton, Bermuda, built to defend the harbor and now preserved as a historic site and tourist attraction.
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E.
Fort Hamilton
Fort Hamilton is a historic U.S. Army installation in Brooklyn, New York, guarding the entrance to New York Harbor at the Verrazzano-Narrows Bridge.
- 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: Fort Warren Target entity description: Fort Warren is a historic 19th-century coastal fortification on Georges Island in Boston Harbor that served as a key defensive stronghold and later as a Civil War prison.
-
A.
Fort Jay
Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
-
B.
Charlestown Navy Yard
Charlestown Navy Yard is a historic former U.S. Navy shipyard in Boston, Massachusetts, known for its role in American naval history and as the home port of the USS Constitution.
-
C.
Fort Point
Fort Point is a prominent headland in Gloucester, Massachusetts, that helps form the entrance to Gloucester Harbor and has historically hosted defensive and navigational structures.
-
D.
Fort Hamilton
Fort Hamilton is a 19th-century British coastal artillery fort in Hamilton, Bermuda, built to defend the harbor and now preserved as a historic site and tourist attraction.
-
E.
Fort Hamilton
Fort Hamilton is a historic U.S. Army installation in Brooklyn, New York, guarding the entrance to New York Harbor at the Verrazzano-Narrows Bridge.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
19th-century fort
ⓘ
coastal fortification ⓘ historic site ⓘ |
| armamentType | seacoast artillery ⓘ |
| builtBy | United States Army ⓘ |
| constructionBegan | 1833 ⓘ |
| constructionCompleted | circa 1861 ⓘ |
| currentUse |
public historic site
ⓘ
tourist attraction ⓘ |
| decommissionedAsFort | mid-20th century ⓘ |
| designedAsPartOf |
Third System of US coastal defenses
ⓘ
linked to:
Third System of US seacoast defense
|
| eraOfSignificance |
19th century
ⓘ
American Civil War era ⓘ |
| garrisonedBy | Union Army ⓘ |
| hasFeature |
bastions
ⓘ
casemates ⓘ dry moat ⓘ parade ground ⓘ sally port ⓘ |
| hasFunction |
Civil War military prison
ⓘ
coastal defense fort ⓘ |
| hasLegend | Lady in Black ghost story ⓘ |
| listedIn | National Register of Historic Places ⓘ |
| locatedIn |
Boston Harbor Islands
ⓘ
Boston, Massachusetts ⓘ Massachusetts ⓘ |
| locatedInBodyOfWater | Boston Harbor ⓘ |
| locatedInCountry |
United States
ⓘ
linked to:
United States of America
|
| locatedOn | Georges Island ⓘ |
| managedBy | Massachusetts Department of Conservation and Recreation ⓘ |
| materialUsed | granite ⓘ |
| namedAfter |
Revolutionary War hero Dr. Joseph Warren
ⓘ
linked to:
Joseph Warren
|
| notablePrisonerHeld |
Alexander H. Stephens
ⓘ
James M. Mason ⓘ John Slidell ⓘ |
| openToPublic | seasonally ⓘ |
| partOf | Boston Harbor Islands National Recreation Area ⓘ |
| servedAs |
Union Army training camp
ⓘ
garrison post ⓘ prison for Confederate naval officers ⓘ prison for Confederate political prisoners ⓘ prison for Confederate soldiers ⓘ |
| shape | pentagonal fort ⓘ |
| significance | key element of Boston Harbor defenses ⓘ |
| usedDuringConflict |
American Civil War
ⓘ
World War I ⓘ World War II ⓘ |
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: Fort Warren Description of subject: Fort Warren is a historic 19th-century coastal fortification on Georges Island in Boston Harbor that served as a key defensive stronghold and later as a Civil War prison.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Fort Warren