Battle of North Anna
E669369
The Battle of North Anna was an 1864 American Civil War engagement in Virginia during Ulysses S. Grant’s Overland Campaign, where Robert E. Lee’s Army of Northern Virginia used a strong inverted “V” defensive line to temporarily halt the Union advance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Battle of North Anna canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7038477 — 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 North Anna Context triple: [Battle of Spotsylvania Court House, followedBy, Battle of North Anna]
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A.
Battle of Rappahannock Station
The Battle of Rappahannock Station was an American Civil War engagement in November 1863 in Virginia, where Union forces successfully stormed Confederate fortifications along the Rappahannock River, securing a significant tactical victory.
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B.
Battle of Spotsylvania Court House
The Battle of Spotsylvania Court House was a major and brutal engagement of the American Civil War’s Overland Campaign in May 1864, marked by intense trench warfare and heavy casualties between Union forces under Ulysses S. Grant and Confederate forces under Robert E. Lee.
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C.
Battle of Kelly’s Ford
The Battle of Kelly’s Ford was a significant American Civil War cavalry engagement in March 1863 in Virginia, marking one of the first major tests of Union cavalry against Confederate horsemen.
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D.
Battle of Mechanicsville
The Battle of Mechanicsville was an 1862 American Civil War engagement near Richmond, Virginia, marking the opening clash of Robert E. Lee’s Seven Days Campaign against Union forces during the Peninsula Campaign.
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E.
Battle of Gaines’s Mill
The Battle of Gaines’s Mill was a major American Civil War engagement in June 1862 during the Peninsula Campaign, marking Confederate General Robert E. Lee’s first major victory over Union forces near Richmond, Virginia.
- 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 North Anna Target entity description: The Battle of North Anna was an 1864 American Civil War engagement in Virginia during Ulysses S. Grant’s Overland Campaign, where Robert E. Lee’s Army of Northern Virginia used a strong inverted “V” defensive line to temporarily halt the Union advance.
-
A.
Battle of Rappahannock Station
The Battle of Rappahannock Station was an American Civil War engagement in November 1863 in Virginia, where Union forces successfully stormed Confederate fortifications along the Rappahannock River, securing a significant tactical victory.
-
B.
Battle of Spotsylvania Court House
The Battle of Spotsylvania Court House was a major and brutal engagement of the American Civil War’s Overland Campaign in May 1864, marked by intense trench warfare and heavy casualties between Union forces under Ulysses S. Grant and Confederate forces under Robert E. Lee.
-
C.
Battle of Kelly’s Ford
The Battle of Kelly’s Ford was a significant American Civil War cavalry engagement in March 1863 in Virginia, marking one of the first major tests of Union cavalry against Confederate horsemen.
-
D.
Battle of Mechanicsville
The Battle of Mechanicsville was an 1862 American Civil War engagement near Richmond, Virginia, marking the opening clash of Robert E. Lee’s Seven Days Campaign against Union forces during the Peninsula Campaign.
-
E.
Battle of Gaines’s Mill
The Battle of Gaines’s Mill was a major American Civil War engagement in June 1862 during the Peninsula Campaign, marking Confederate General Robert E. Lee’s first major victory over Union forces near Richmond, Virginia.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| alsoKnownAs | North Anna NERFINISHED ⓘ |
| belligerent |
Confederacy
NERFINISHED
ⓘ
Confederate States of America ⓘ Union NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| campaign | Overland Campaign NERFINISHED ⓘ |
| casualties | thousands combined ⓘ |
| combatant |
Army of Northern Virginia
NERFINISHED
ⓘ
Army of the Potomac NERFINISHED ⓘ |
| commander |
George G. Meade
NERFINISHED
ⓘ
Robert E. Lee NERFINISHED ⓘ Ulysses S. Grant NERFINISHED ⓘ |
| confederateArmyCommander | Robert E. Lee NERFINISHED ⓘ |
| confederateCasualtiesApprox | about 2,500 ⓘ |
| confederateObjective | block Union advance toward Richmond ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | May 23–26, 1864 ⓘ |
| endDate | 1864-05-26 ⓘ |
| followedBy |
Battle of Cold Harbor
NERFINISHED
ⓘ
Battle of Totopotomoy Creek NERFINISHED ⓘ |
| front | Eastern Theater of the American Civil War NERFINISHED ⓘ |
| historicalPeriod | American Civil War NERFINISHED ⓘ |
| locationDetail |
Caroline County, Virginia
NERFINISHED
ⓘ
Hanover County, Virginia NERFINISHED ⓘ |
| notableFeature |
inverted V defensive line
ⓘ
strong Confederate defensive position ⓘ |
| objective | Union attempt to move south toward Richmond ⓘ |
| overallUnionCommander | Ulysses S. Grant NERFINISHED ⓘ |
| partOf | Overland Campaign NERFINISHED ⓘ |
| phaseOf | Grant’s 1864 Virginia campaign NERFINISHED ⓘ |
| place | Virginia NERFINISHED ⓘ |
| precededBy | Battle of Spotsylvania Court House NERFINISHED ⓘ |
| primaryOpposingForces | Army of the Potomac vs. Army of Northern Virginia ⓘ |
| result |
inconclusive
ⓘ
tactical stalemate ⓘ |
| river | North Anna River NERFINISHED ⓘ |
| startDate | 1864-05-23 ⓘ |
| strategicEffect | temporarily halted Union advance ⓘ |
| tacticUsedByConfederates | entrenched defensive works ⓘ |
| tacticUsedByConfederates | interior lines ⓘ |
| theater | Virginia theater of war ⓘ |
| typeOfEngagement | field battle ⓘ |
| unionArmyCommander | George G. Meade NERFINISHED ⓘ |
| unionCasualtiesApprox | about 4,000 ⓘ |
| year | 1864 ⓘ |
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 North Anna Description of subject: The Battle of North Anna was an 1864 American Civil War engagement in Virginia during Ulysses S. Grant’s Overland Campaign, where Robert E. Lee’s Army of Northern Virginia used a strong inverted “V” defensive line to temporarily halt the Union advance.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.