I Corps (Union Army of the Potomac)
E511189
I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
All labels observed (6)
| Label | Occurrences |
|---|---|
| I Corps (Army of the Potomac) | 2 |
| 1st Corps, Army of the Potomac | 1 |
| I Corps (Union Army of the Potomac) canonical | 1 |
| I Corps (Union Army) | 1 |
| I Corps (Union elements) | 1 |
| I Corps, Army of the Potomac | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5195386 — 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: I Corps (Union Army of the Potomac) Context triple: [Cemetery Ridge, defendedBy, I Corps (Union Army of the Potomac)]
-
A.
II Corps (Union Army of the Potomac)
II Corps of the Union Army of the Potomac was a major Civil War field corps renowned for its pivotal combat role and heavy engagement in key battles such as Antietam, Fredericksburg, Chancellorsville, and Gettysburg.
-
B.
III Corps, Army of the Potomac
III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
-
C.
XI Corps (Union Army of the Potomac)
XI Corps was a Union Army corps in the Army of the Potomac composed largely of German-American troops, noted for its controversial performances at battles such as Chancellorsville and Gettysburg.
-
D.
Union III Corps
Union III Corps was a major formation of the Union Army of the Potomac during the American Civil War, noted for its hard fighting and heavy casualties in key battles such as Gettysburg.
-
E.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
- 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: I Corps (Union Army of the Potomac) Target entity description: I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
-
A.
II Corps (Union Army of the Potomac)
II Corps of the Union Army of the Potomac was a major Civil War field corps renowned for its pivotal combat role and heavy engagement in key battles such as Antietam, Fredericksburg, Chancellorsville, and Gettysburg.
-
B.
III Corps, Army of the Potomac
III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
-
C.
XI Corps (Union Army of the Potomac)
XI Corps was a Union Army corps in the Army of the Potomac composed largely of German-American troops, noted for its controversial performances at battles such as Chancellorsville and Gettysburg.
-
D.
Union III Corps
Union III Corps was a major formation of the Union Army of the Potomac during the American Civil War, noted for its hard fighting and heavy casualties in key battles such as Gettysburg.
-
E.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army formation
ⓘ
military corps ⓘ |
| absorbedInto |
IX Corps (Union Army)
NERFINISHED
ⓘ
V Corps (Union Army) NERFINISHED ⓘ |
| allegiance | Union NERFINISHED ⓘ |
| alsoKnownAs |
First Corps
NERFINISHED
ⓘ
I Army Corps NERFINISHED ⓘ |
| branch | infantry ⓘ |
| conflict | American Civil War ⓘ |
| corpsBadgeColorCode |
blue for third division
ⓘ
red for first division ⓘ white for second division ⓘ |
| corpsBadgeShape | sphere ⓘ |
| country | United States of America ⓘ |
| disbandedOn | 1864-03-24 ⓘ |
| engagement |
Battle of Antietam
NERFINISHED
ⓘ
Battle of Chancellorsville NERFINISHED ⓘ Battle of Fredericksburg NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Mine Run NERFINISHED ⓘ Battle of South Mountain NERFINISHED ⓘ Overland Campaign NERFINISHED ⓘ Second Battle of Bull Run NERFINISHED ⓘ |
| flagType | corps badge ⓘ |
| formedOn | 1862-03-13 ⓘ |
| garrison | Army of the Potomac field operations ⓘ |
| higherFormation | United States Army NERFINISHED ⓘ |
| notableAction |
fought on the first day of the Battle of Gettysburg
ⓘ
sustained heavy casualties at Gettysburg ⓘ |
| notableCommander |
Abner Doubleday
NERFINISHED
ⓘ
James S. Wadsworth NERFINISHED ⓘ John F. Reynolds NERFINISHED ⓘ Joseph Hooker NERFINISHED ⓘ |
| notableUnit | Iron Brigade NERFINISHED ⓘ |
| partOf | Army of the Potomac NERFINISHED ⓘ |
| precededBy | Division of the Potomac formations ⓘ |
| raisedBy | United States War Department NERFINISHED ⓘ |
| recruitmentArea |
Midwestern United States
NERFINISHED
ⓘ
Northeastern United States ⓘ |
| roleAtAntietam | attacked Confederate left near the Cornfield ⓘ |
| roleAtGettysburg | held off Confederate advances on the first day ⓘ |
| size | corps ⓘ |
| subordinateTo |
Major General George B. McClellan
NERFINISHED
ⓘ
Major General George G. Meade NERFINISHED ⓘ Major General Joseph Hooker NERFINISHED ⓘ |
| theater | Eastern Theater of the American Civil War NERFINISHED ⓘ |
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: I Corps (Union Army of the Potomac) Description of subject: I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
1st Corps, Army of the Potomac
this entity surface form:
I Corps (Army of the Potomac)
this entity surface form:
I Corps, Army of the Potomac
this entity surface form:
I Corps (Union Army)
this entity surface form:
I Corps (Army of the Potomac)
this entity surface form:
I Corps (Union elements)