Battle of Harpers Ferry
E536013
The Battle of Harpers Ferry was an American Civil War engagement in September 1862 in which Confederate forces under Stonewall Jackson captured a large Union garrison and secured a key strategic position just before the Battle of Antietam.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Battle of Harpers Ferry canonical | 2 |
| Battle of Harpers Ferry (1862) | 1 |
| Union surrender at Harpers Ferry (1862) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5553059 — 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 Harpers Ferry Context triple: [Maryland Campaign, includesBattle, Battle of Harpers Ferry]
-
A.
Battle of Shepherdstown
The Battle of Shepherdstown was a minor but strategically important American Civil War engagement in September 1862, marking the Confederate rearguard action as Robert E. Lee’s army withdrew across the Potomac River after the Maryland Campaign.
-
B.
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.
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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."
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D.
Fort Henry campaign
The Fort Henry campaign was an early Union offensive in the Western Theater of the American Civil War, led by Ulysses S. Grant to secure control of the Tennessee River and open a pathway into the Confederate heartland.
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E.
Siege of Fort Harrison
The Siege of Fort Harrison was an 1812 attack by Native American forces on a U.S. frontier outpost in Indiana Territory, notable as one of the first American land victories of the War of 1812 and a key engagement in the broader conflict with Tecumseh’s confederacy.
- 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 Harpers Ferry Target entity description: The Battle of Harpers Ferry was an American Civil War engagement in September 1862 in which Confederate forces under Stonewall Jackson captured a large Union garrison and secured a key strategic position just before the Battle of Antietam.
-
A.
Battle of Shepherdstown
The Battle of Shepherdstown was a minor but strategically important American Civil War engagement in September 1862, marking the Confederate rearguard action as Robert E. Lee’s army withdrew across the Potomac River after the Maryland Campaign.
-
B.
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.
-
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.
Fort Henry campaign
The Fort Henry campaign was an early Union offensive in the Western Theater of the American Civil War, led by Ulysses S. Grant to secure control of the Tennessee River and open a pathway into the Confederate heartland.
-
E.
Siege of Fort Harrison
The Siege of Fort Harrison was an 1812 attack by Native American forces on a U.S. frontier outpost in Indiana Territory, notable as one of the first American land victories of the War of 1812 and a key engagement in the broader conflict with Tecumseh’s confederacy.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| alsoKnownAs | Siege of Harpers Ferry NERFINISHED ⓘ |
| associatedWith | Army of Northern Virginia NERFINISHED ⓘ |
| belligerent |
Confederacy
NERFINISHED
ⓘ
Union NERFINISHED ⓘ |
| campaignObjective | clear Union garrison from Harpers Ferry during Maryland Campaign ⓘ |
| capturedBy | Stonewall Jackson NERFINISHED ⓘ |
| commander |
A. P. Hill
NERFINISHED
ⓘ
Dixon S. Miles NERFINISHED ⓘ John G. Walker NERFINISHED ⓘ Lafayette McLaws NERFINISHED ⓘ Stonewall Jackson NERFINISHED ⓘ |
| confederateCasualtiesAndLosses |
about 247 wounded
ⓘ
about 3 missing ⓘ about 39 killed ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | September 12–15, 1862 ⓘ |
| endDate | 1862-09-15 ⓘ |
| followedBy | Battle of Antietam NERFINISHED ⓘ |
| historicalSignificance | largest surrender of U.S. troops during the American Civil War ⓘ |
| locationFeature | confluence of Potomac River and Shenandoah River ⓘ |
| modernState | West Virginia NERFINISHED ⓘ |
| notableOutcome |
Union surrender of Harpers Ferry
ⓘ
large Union garrison captured ⓘ |
| partOf | Maryland Campaign NERFINISHED ⓘ |
| place | Harpers Ferry, Virginia NERFINISHED ⓘ |
| preceded | Battle of Antietam NERFINISHED ⓘ |
| presentDayLocation | Harpers Ferry, West Virginia NERFINISHED ⓘ |
| result | Confederate victory ⓘ |
| startDate | 1862-09-12 ⓘ |
| stateAtTime | Virginia NERFINISHED ⓘ |
| strategicImportance |
secured important railroad and arsenal town
ⓘ
secured key position at confluence of Potomac and Shenandoah Rivers ⓘ |
| strengthConfederate | about 21,000 soldiers ⓘ |
| strengthUnion | about 12,000 soldiers ⓘ |
| surrenderDate | 1862-09-15 ⓘ |
| surrenderedBy | Dixon S. Miles NERFINISHED ⓘ |
| tacticalFeature |
Confederate forces occupied surrounding heights
ⓘ
Union forces held town and Bolivar Heights ⓘ |
| theater | Eastern Theater of the American Civil War NERFINISHED ⓘ |
| typeOfEngagement |
encirclement
ⓘ
siege ⓘ |
| unionCasualtiesAndLosses |
about 12,419 captured or missing
ⓘ
about 173 wounded ⓘ about 44 killed ⓘ |
| unionDepartment | Department of the Shenandoah NERFINISHED ⓘ |
| year | 1862 ⓘ |
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 Harpers Ferry Description of subject: The Battle of Harpers Ferry was an American Civil War engagement in September 1862 in which Confederate forces under Stonewall Jackson captured a large Union garrison and secured a key strategic position just before the Battle of Antietam.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Battle of Harpers Ferry (1862)
this entity surface form:
Union surrender at Harpers Ferry (1862)