Battle of Thoroughfare Gap
E590338
The Battle of Thoroughfare Gap was an American Civil War engagement in August 1862 in which Confederate forces under James Longstreet forced a passage through a mountain gap in Virginia, enabling them to reunite with Stonewall Jackson before the Second Battle of Bull Run.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Battle of Thoroughfare Gap canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6402688 — 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 Thoroughfare Gap Context triple: [Northern Virginia Campaign, includesBattle, Battle of Thoroughfare Gap]
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A.
Battle of Crampton’s Gap
The Battle of Crampton’s Gap was an American Civil War clash on September 14, 1862, in which Union forces seized a key South Mountain pass in Maryland, helping to set the stage for the Battle of Antietam.
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B.
Battle of Heller's Corner
The Battle of Heller's Corner was a skirmish during General Josiah Harmar's 1790 campaign in the Northwest Indian War, involving clashes between U.S. forces and Native American warriors in the Ohio Country.
-
C.
Battle of Fox’s Gap
The Battle of Fox’s Gap was a Civil War engagement fought on September 14, 1862, as part of the larger Battle of South Mountain during the Maryland Campaign, where Union and Confederate forces clashed over a key mountain pass in Maryland.
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D.
Battle of Upperville
The Battle of Upperville was a June 1863 American Civil War cavalry engagement in Virginia, fought between Union and Confederate forces as part of the maneuvering that preceded the Battle of Gettysburg.
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E.
Battle of Cooch’s Bridge
The Battle of Cooch’s Bridge was a 1777 American Revolutionary War skirmish in Delaware notable as the only major land engagement fought in that colony and as an early clash preceding the British advance toward Philadelphia.
- 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 Thoroughfare Gap Target entity description: The Battle of Thoroughfare Gap was an American Civil War engagement in August 1862 in which Confederate forces under James Longstreet forced a passage through a mountain gap in Virginia, enabling them to reunite with Stonewall Jackson before the Second Battle of Bull Run.
-
A.
Battle of Crampton’s Gap
The Battle of Crampton’s Gap was an American Civil War clash on September 14, 1862, in which Union forces seized a key South Mountain pass in Maryland, helping to set the stage for the Battle of Antietam.
-
B.
Battle of Heller's Corner
The Battle of Heller's Corner was a skirmish during General Josiah Harmar's 1790 campaign in the Northwest Indian War, involving clashes between U.S. forces and Native American warriors in the Ohio Country.
-
C.
Battle of Fox’s Gap
The Battle of Fox’s Gap was a Civil War engagement fought on September 14, 1862, as part of the larger Battle of South Mountain during the Maryland Campaign, where Union and Confederate forces clashed over a key mountain pass in Maryland.
-
D.
Battle of Upperville
The Battle of Upperville was a June 1863 American Civil War cavalry engagement in Virginia, fought between Union and Confederate forces as part of the maneuvering that preceded the Battle of Gettysburg.
-
E.
Battle of Cooch’s Bridge
The Battle of Cooch’s Bridge was a 1777 American Revolutionary War skirmish in Delaware notable as the only major land engagement fought in that colony and as an early clash preceding the British advance toward Philadelphia.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| alsoKnownAs | Battle of Chapman’s Mill NERFINISHED ⓘ |
| armyConfederate | Army of Northern Virginia NERFINISHED ⓘ |
| armyUnion | Army of Virginia NERFINISHED ⓘ |
| belligerentStrengthApproximate |
Confederate corps under James Longstreet
ⓘ
Union forces of the Army of Virginia and Army of the Potomac elements ⓘ |
| campaignCommanderConfederate | Robert E. Lee NERFINISHED ⓘ |
| campaignCommanderUnion | John Pope NERFINISHED ⓘ |
| combatant |
Confederate States of America
NERFINISHED
ⓘ
United States (Union) NERFINISHED ⓘ |
| commander |
George B. McClellan
NERFINISHED
ⓘ
Irvin McDowell NERFINISHED ⓘ James Longstreet NERFINISHED ⓘ Rufus King NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | August 28, 1862 ⓘ |
| followedBy | Second Battle of Bull Run NERFINISHED ⓘ |
| front | Eastern Front of the American Civil War NERFINISHED ⓘ |
| geographicalFeatureInvolved | Thoroughfare Gap in the Bull Run Mountains NERFINISHED ⓘ |
| hasCategory |
1862 in Virginia
ⓘ
Battles of the Eastern Theater of the American Civil War NERFINISHED ⓘ Battles of the Northern Virginia Campaign NERFINISHED ⓘ Conflicts in 1862 ⓘ |
| locatedIn | Prince William County, Virginia NERFINISHED ⓘ |
| month | August 1862 ⓘ |
| nearbyLandmark | Chapman’s Mill NERFINISHED ⓘ |
| objective | to force passage through Thoroughfare Gap ⓘ |
| opposingForces | Longstreet’s wing of the Army of Northern Virginia vs. elements of the Union Army of Virginia ⓘ |
| partOf |
Eastern Theater of the American Civil War
NERFINISHED
ⓘ
Northern Virginia Campaign NERFINISHED ⓘ |
| place | Thoroughfare Gap, Virginia NERFINISHED ⓘ |
| preceded | Second Battle of Bull Run NERFINISHED ⓘ |
| preservationStatus | part of the Thoroughfare Gap Battlefield ⓘ |
| relatedEvent | Second Battle of Manassas NERFINISHED ⓘ |
| result | Confederate victory ⓘ |
| significance | allowed Confederate concentration before Second Manassas ⓘ |
| state | Virginia ⓘ |
| strategicEffect | enabled Longstreet to reunite with Stonewall Jackson ⓘ |
| supportedCommander | Thomas J. "Stonewall" Jackson NERFINISHED ⓘ |
| tacticalAction |
Confederate forces flanked Union defenders in the gap
ⓘ
Union forces attempted to block the mountain pass ⓘ |
| terrain | mountain pass ⓘ |
| typeOfEngagement | meeting engagement ⓘ |
| 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 Thoroughfare Gap Description of subject: The Battle of Thoroughfare Gap was an American Civil War engagement in August 1862 in which Confederate forces under James Longstreet forced a passage through a mountain gap in Virginia, enabling them to reunite with Stonewall Jackson before the Second Battle of Bull Run.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.