Battle of Fort Stedman
E198418
The Battle of Fort Stedman was a late-March 1865 Confederate breakout attempt against Union lines near Petersburg, Virginia, whose failure hastened the collapse of Robert E. Lee’s army and the end of the American Civil War.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Battle of Fort Stedman canonical | 5 |
| Assault on Fort Stedman | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1192942 — 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 Stedman Context triple: [Siege of Petersburg, majorEngagement, Battle of Fort Stedman]
-
A.
Battle of Cold Harbor
The Battle of Cold Harbor was a major and notoriously bloody 1864 Civil War engagement near Richmond, Virginia, in which Confederate forces under Robert E. Lee repelled repeated Union assaults during Ulysses S. Grant’s Overland Campaign.
-
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 the Crater
The Battle of the Crater was a notable and disastrous 1864 Union assault during the American Civil War, in which an underground mine explosion before Petersburg, Virginia, led to heavy Union casualties and a failed breakthrough.
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D.
Second Battle of Winchester
The Second Battle of Winchester was a major Confederate victory in June 1863 during the American Civil War that opened the Shenandoah Valley for Robert E. Lee’s army and set the stage for the Gettysburg Campaign.
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E.
Battle of Fair Oaks
The Battle of Fair Oaks, also known as the Battle of Seven Pines, was a major 1862 American Civil War engagement near Richmond, Virginia, that halted the Union advance during the Peninsula Campaign and led to Robert E. Lee taking command of the Confederate Army of Northern 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 Fort Stedman Target entity description: The Battle of Fort Stedman was a late-March 1865 Confederate breakout attempt against Union lines near Petersburg, Virginia, whose failure hastened the collapse of Robert E. Lee’s army and the end of the American Civil War.
-
A.
Battle of Cold Harbor
The Battle of Cold Harbor was a major and notoriously bloody 1864 Civil War engagement near Richmond, Virginia, in which Confederate forces under Robert E. Lee repelled repeated Union assaults during Ulysses S. Grant’s Overland Campaign.
-
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 the Crater
The Battle of the Crater was a notable and disastrous 1864 Union assault during the American Civil War, in which an underground mine explosion before Petersburg, Virginia, led to heavy Union casualties and a failed breakthrough.
-
D.
Second Battle of Winchester
The Second Battle of Winchester was a major Confederate victory in June 1863 during the American Civil War that opened the Shenandoah Valley for Robert E. Lee’s army and set the stage for the Gettysburg Campaign.
-
E.
Battle of Fair Oaks
The Battle of Fair Oaks, also known as the Battle of Seven Pines, was a major 1862 American Civil War engagement near Richmond, Virginia, that halted the Union advance during the Peninsula Campaign and led to Robert E. Lee taking command of the Confederate Army of Northern Virginia.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| alsoKnownAs |
Battle of Fort Stedman
ⓘ
surface form:
Assault on Fort Stedman
|
| belligerent |
Confederate States of America
ⓘ
United States of America ⓘ |
| combatant |
Army of Northern Virginia
ⓘ
Army of the James ⓘ Army of the Potomac ⓘ |
| commander |
George G. Meade
ⓘ
John B. Gordon ⓘ Robert E. Lee ⓘ Ulysses S. Grant ⓘ |
| confederateCasualties | high ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | March 25, 1865 ⓘ |
| endDate | March 25, 1865 ⓘ |
| followedBy |
Appomattox Campaign
ⓘ
Third Battle of Petersburg ⓘ |
| fortificationInvolved |
Fort Stedman area
ⓘ
surface form:
Fort Stedman
Union defensive works east of Petersburg ⓘ |
| front | Eastern Theater of the American Civil War ⓘ |
| historicalPeriod | American Civil War era ⓘ |
| location | Petersburg, Virginia ⓘ |
| notableFor | Being one of the last Confederate offensives before Appomattox ⓘ |
| objective |
Confederate breakout from Petersburg siege lines
ⓘ
Disrupt Union supply and communication lines ⓘ |
| partOf | Siege of Petersburg ⓘ |
| partOfCampaign | Richmond–Petersburg Campaign ⓘ |
| precededBy |
Battle of Hatcher's Run
ⓘ
surface form:
Battle of Hatcher’s Run
|
| result | Union victory ⓘ |
| side |
Confederate attack
ⓘ
Union defense ⓘ |
| significance |
Contributed to the fall of Richmond
ⓘ
Contributed to the surrender of Robert E. Lee’s army at Appomattox Court House ⓘ Hastened the collapse of Confederate defenses at Petersburg ⓘ Last major Confederate offensive in the Eastern Theater ⓘ |
| startDate | March 25, 1865 ⓘ |
| state | Virginia ⓘ |
| strategicContext |
Final months of the American Civil War
ⓘ
Late stage of the Siege of Petersburg ⓘ |
| tacticalOutcome |
Initial Confederate penetration of Union lines
ⓘ
Rapid Union counterattack restored lines ⓘ |
| theater |
Eastern Theater
ⓘ
surface form:
Virginia theater of operations
|
| typeOfAction |
breakout attempt
ⓘ
surprise assault ⓘ |
| unionCasualties | significant ⓘ |
| year | 1865 ⓘ |
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 Stedman Description of subject: The Battle of Fort Stedman was a late-March 1865 Confederate breakout attempt against Union lines near Petersburg, Virginia, whose failure hastened the collapse of Robert E. Lee’s army and the end of the American Civil War.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Assault on Fort Stedman