Battle of Fort Stevens
E395991
The Battle of Fort Stevens was a July 1864 American Civil War engagement in which Union forces repelled Confederate troops attacking the defenses of Washington, D.C., marking the only time a sitting U.S. president, Abraham Lincoln, came under direct enemy fire.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Battle of Fort Stevens canonical | 3 |
| Confederate approach to Fort Stevens | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3866731 — 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: Battle of Fort Stevens Context triple: [Battle of Monocacy, followedBy, Battle of Fort Stevens]
-
A.
Battle of Ball's Bluff
The Battle of Ball's Bluff was an early and disastrous Union defeat in the American Civil War, fought in October 1861 along the Potomac River in Virginia, which led to political upheaval in Washington and the creation of the Joint Committee on the Conduct of the War.
-
B.
Battle of Cedar Mountain
The Battle of Cedar Mountain was an American Civil War engagement in August 1862 in Virginia, where Confederate forces under Stonewall Jackson clashed with Union troops as part of the Northern Virginia Campaign.
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C.
Battle of Monocacy
The Battle of Monocacy was an 1864 American Civil War engagement in Maryland in which Union forces delayed a Confederate advance toward Washington, D.C., earning it the nickname "The Battle That Saved Washington."
-
D.
Battle of Front Royal
The Battle of Front Royal was an 1862 American Civil War engagement in Virginia where Confederate forces under Stonewall Jackson achieved a key victory that helped drive Union troops from the Shenandoah Valley.
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E.
Battle of Trevilian Station
The Battle of Trevilian Station was a major American Civil War cavalry engagement in June 1864 in Virginia, where Union forces under Philip Sheridan clashed with Confederate cavalry in one of the war’s largest all-cavalry battles.
- 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: Battle of Fort Stevens Target entity description: The Battle of Fort Stevens was a July 1864 American Civil War engagement in which Union forces repelled Confederate troops attacking the defenses of Washington, D.C., marking the only time a sitting U.S. president, Abraham Lincoln, came under direct enemy fire.
-
A.
Battle of Ball's Bluff
The Battle of Ball's Bluff was an early and disastrous Union defeat in the American Civil War, fought in October 1861 along the Potomac River in Virginia, which led to political upheaval in Washington and the creation of the Joint Committee on the Conduct of the War.
-
B.
Battle of Cedar Mountain
The Battle of Cedar Mountain was an American Civil War engagement in August 1862 in Virginia, where Confederate forces under Stonewall Jackson clashed with Union troops as part of the Northern Virginia Campaign.
-
C.
Battle of Monocacy
The Battle of Monocacy was an 1864 American Civil War engagement in Maryland in which Union forces delayed a Confederate advance toward Washington, D.C., earning it the nickname "The Battle That Saved Washington."
-
D.
Battle of Front Royal
The Battle of Front Royal was an 1862 American Civil War engagement in Virginia where Confederate forces under Stonewall Jackson achieved a key victory that helped drive Union troops from the Shenandoah Valley.
-
E.
Battle of Trevilian Station
The Battle of Trevilian Station was a major American Civil War cavalry engagement in June 1864 in Virginia, where Union forces under Philip Sheridan clashed with Confederate cavalry in one of the war’s largest all-cavalry battles.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| AbrahamLincolnRisk | came under Confederate sharpshooter fire ⓘ |
| AbrahamLincolnRole | observed the battle from Fort Stevens ramparts ⓘ |
| alsoKnownAs | Battle of Fort Massachusetts ⓘ |
| belligerent |
Confederate States of America
ⓘ
United States (Union) ⓘ
linked to:
United States of America
|
| commander |
Abraham Lincoln (as U.S. president and commander-in-chief, present at the battle)
ⓘ
linked to:
Abraham Lincoln in Lincoln
|
| commemoratedBy | markers and monuments in Washington, D.C. ⓘ |
| ConfederateCasualtiesApprox | around 500–600 killed, wounded, and missing ⓘ |
| ConfederateCommander |
Lt. Gen. Jubal A. Early
ⓘ
linked to:
Major General Jubal A. Early
Maj. Gen. John C. Breckinridge ⓘ
linked to:
Confederate general John C. Breckinridge
|
| ConfederateStrengthApprox | approximately 8,000–15,000 troops engaged ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| date | July 11–12, 1864 ⓘ |
| defensiveLine |
Washington, D.C. fortifications
ⓘ
linked to:
Civil War Defenses of Washington
|
| endDate | July 12, 1864 ⓘ |
| fortInvolved |
Fort DeRussy
ⓘ
Fort Slocum ⓘ Fort Stevens ⓘ Fort Totten ⓘ |
| historicalSignificance |
demonstrated effectiveness of Washington’s fortifications
ⓘ
last major Confederate threat to Washington, D.C. ⓘ |
| location |
District of Columbia
ⓘ
Washington, D.C. ⓘ |
| memorial |
Fort Stevens National Historic Site
ⓘ
linked to:
Fort Stevens
|
| notableFact | only time a sitting U.S. president came under direct enemy fire ⓘ |
| notableParticipant | Abraham Lincoln ⓘ |
| objectiveOfConfederates | threaten and possibly capture Washington, D.C. ⓘ |
| partOf | Valley Campaigns of 1864 ⓘ |
| precededBy | Confederate raid into Maryland by Jubal Early ⓘ |
| relatedEvent | Battle of Monocacy ⓘ |
| result | Union victory ⓘ |
| startDate | July 11, 1864 ⓘ |
| stateOrDistrict | District of Columbia ⓘ |
| strategicContext | Confederate attempt to relieve pressure on Richmond and Petersburg ⓘ |
| strategicOutcome | Washington, D.C. remained secure ⓘ |
| tacticalOutcome | Confederate forces withdrew toward Virginia ⓘ |
| theater | Eastern Theater of the American Civil War ⓘ |
| UnionCasualtiesApprox | around 300 killed, wounded, and missing ⓘ |
| UnionCommander |
Maj. Gen. Alexander M. McCook
ⓘ
Maj. Gen. Horatio G. Wright ⓘ |
| UnionForcesIncluded |
100-day regiments from Ohio
ⓘ
District of Columbia Militia ⓘ VI Corps ⓘ Veteran Reserve Corps ⓘ XIX Corps elements ⓘ
linked to:
XIX Corps (Union Army)
|
| UnionStrengthApprox | approximately 9,000–10,000 troops engaged ⓘ |
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: Battle of Fort Stevens Description of subject: The Battle of Fort Stevens was a July 1864 American Civil War engagement in which Union forces repelled Confederate troops attacking the defenses of Washington, D.C., marking the only time a sitting U.S. president, Abraham Lincoln, came under direct enemy fire.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.