Fort Stevens
E675632
Fort Stevens is a historic Union Army fortification in Washington, D.C., best known as the site where President Abraham Lincoln came under enemy fire during a Confederate attack in 1864.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Fort Stevens canonical | 4 |
| Fort Stevens National Historic Site | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7586365 — 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 Stevens Context triple: [Civil War Defenses of Washington, hasPart, Fort Stevens]
-
A.
Fort Wrangell
Fort Wrangell was a 19th-century U.S. military post in what is now Wrangell, Alaska, established to assert American presence and control in the region following the Alaska Purchase.
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B.
Fort Yukon
Fort Yukon is a remote Alaskan city within the Arctic Circle, historically a Gwich'in Athabascan settlement and former Hudson's Bay Company trading post.
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C.
Fort Gratiot
Fort Gratiot was a 19th-century U.S. Army fortification in Michigan that guarded the strategic junction of the St. Clair River and Lake Huron.
-
D.
Fort Gustavus
Fort Gustavus was a Dutch colonial fortification in Bengal that served as a strategic trading and military outpost for the Dutch East India Company.
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E.
Fort Wainwright
Fort Wainwright is a major U.S. Army installation in interior Alaska that supports Arctic training and 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: Fort Stevens Target entity description: Fort Stevens is a historic Union Army fortification in Washington, D.C., best known as the site where President Abraham Lincoln came under enemy fire during a Confederate attack in 1864.
-
A.
Fort Wrangell
Fort Wrangell was a 19th-century U.S. military post in what is now Wrangell, Alaska, established to assert American presence and control in the region following the Alaska Purchase.
-
B.
Fort Yukon
Fort Yukon is a remote Alaskan city within the Arctic Circle, historically a Gwich'in Athabascan settlement and former Hudson's Bay Company trading post.
-
C.
Fort Gratiot
Fort Gratiot was a 19th-century U.S. Army fortification in Michigan that guarded the strategic junction of the St. Clair River and Lake Huron.
-
D.
Fort Gustavus
Fort Gustavus was a Dutch colonial fortification in Bengal that served as a strategic trading and military outpost for the Dutch East India Company.
-
E.
Fort Wainwright
Fort Wainwright is a major U.S. Army installation in interior Alaska that supports Arctic training and operations.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
Civil War fortification
ⓘ
Union Army fort ⓘ historic site ⓘ |
| attackedBy |
Confederate Army of the Valley
NERFINISHED
ⓘ
Confederate forces NERFINISHED ⓘ |
| builtFor | defense of Washington, D.C. ⓘ |
| category |
American Civil War forts
ⓘ
Military history of Washington, D.C. ⓘ Tourist attractions in Washington, D.C. ⓘ |
| city | Washington, D.C. ⓘ |
| conflict | American Civil War ⓘ |
| controlledBy | Union Army NERFINISHED ⓘ |
| coordinateLocation | approximate coordinates 38.963°N 77.027°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dateOfEvent | Battle of Fort Stevens, July 11–12, 1864 ⓘ |
| defendedBy | Union forces ⓘ |
| event | Battle of Fort Stevens NERFINISHED ⓘ |
| governingBody | National Park Service ⓘ |
| hasHeritageDesignation | U.S. National Register of Historic Places listing NERFINISHED ⓘ |
| hasMemorial |
markers commemorating the Battle of Fort Stevens
ⓘ
monument to President Abraham Lincoln NERFINISHED ⓘ |
| hasPlaque | marker noting Lincoln’s presence under fire ⓘ |
| hasReconstruction | partial reconstruction of fort walls ⓘ |
| hasStructureType | earthen fortification ⓘ |
| hasVisitorCenter | Fort Stevens Civil War site visitor facilities ⓘ |
| heritageDesignation | Civil War Defenses of Washington historic resources NERFINISHED ⓘ |
| locatedIn |
United States of America
ⓘ
surface form:
United States
Washington, D.C. ⓘ |
| namedAfter | Isaac Ingalls Stevens NERFINISHED ⓘ |
| neighborhood | Brightwood NERFINISHED ⓘ |
| notableFor |
President Abraham Lincoln coming under Confederate fire in 1864
ⓘ
being the only time a sitting U.S. president came under direct enemy fire ⓘ |
| openToPublic | yes ⓘ |
| ownedBy | National Park Service ⓘ |
| partOf |
Civil War Defenses of Washington
NERFINISHED
ⓘ
National Park System NERFINISHED ⓘ ring of fortifications around Washington, D.C. ⓘ |
| significantYear | 1864 ⓘ |
| usedDuring | American Civil War NERFINISHED ⓘ |
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 Stevens Description of subject: Fort Stevens is a historic Union Army fortification in Washington, D.C., best known as the site where President Abraham Lincoln came under enemy fire during a Confederate attack in 1864.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fort Stevens National Historic Site