1st Division, XII Corps
E509456
The 1st Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1st Division, XII Corps canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5254325 — 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: 1st Division, XII Corps Context triple: [Culp's Hill, defendedBy, 1st Division, XII Corps]
-
A.
1st Division, V Corps
The 1st Division, V Corps was a Union Army infantry division in the American Civil War, noted for including distinguished regiments such as the 20th Maine and for its prominent role in major Eastern Theater battles.
-
B.
1st Division
The 1st Division is a key formation of the Australian Army, historically notable for its role in major conflicts such as World War I and World War II.
-
C.
II Corps
II Corps was a major field formation of the Ottoman Army that played a significant role in several key campaigns during World War I.
-
D.
XIX Corps
XIX Corps was a U.S. Army corps-level formation that saw significant combat in the European Theater during World War II, particularly in the Normandy campaign and subsequent operations across France and Germany.
-
E.
VIII Corps
VIII Corps was a U.S. Army corps-level formation in World War II that fought in major European campaigns, including the Battle of the Bulge, under General George S. Patton’s overall command.
- 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: 1st Division, XII Corps Target entity description: The 1st Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
-
A.
1st Division, V Corps
The 1st Division, V Corps was a Union Army infantry division in the American Civil War, noted for including distinguished regiments such as the 20th Maine and for its prominent role in major Eastern Theater battles.
-
B.
1st Division
The 1st Division is a key formation of the Australian Army, historically notable for its role in major conflicts such as World War I and World War II.
-
C.
II Corps
II Corps was a major field formation of the Ottoman Army that played a significant role in several key campaigns during World War I.
-
D.
XIX Corps
XIX Corps was a U.S. Army corps-level formation that saw significant combat in the European Theater during World War II, particularly in the Normandy campaign and subsequent operations across France and Germany.
-
E.
VIII Corps
VIII Corps was a U.S. Army corps-level formation in World War II that fought in major European campaigns, including the Battle of the Bulge, under General George S. Patton’s overall command.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army infantry division
ⓘ
military unit ⓘ |
| activeDuring |
1862
ⓘ
1863 ⓘ 1864 ⓘ |
| allegiance |
Union
NERFINISHED
ⓘ
United States of America ⓘ |
| army |
Army of the Cumberland
NERFINISHED
ⓘ
Army of the Potomac NERFINISHED ⓘ |
| belligerentIn | American Civil War NERFINISHED ⓘ |
| branch | Union Army NERFINISHED ⓘ |
| commander |
Alpheus S. Williams
NERFINISHED
ⓘ
Thomas H. Ruger NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| distinguishedFor | holding the Union right flank at Culp's Hill ⓘ |
| engagedAgainst | Confederate States Army NERFINISHED ⓘ |
| engagedOnDate |
1863-07-02
ⓘ
1863-07-03 ⓘ |
| formedPartOf | Twelfth Army Corps of the Army of the Potomac NERFINISHED ⓘ |
| garrisonOrBattlefield | Gettysburg, Pennsylvania NERFINISHED ⓘ |
| higherFormation |
Army of the Cumberland, XX Corps (after consolidation)
NERFINISHED
ⓘ
Army of the Potomac, XII Corps NERFINISHED ⓘ |
| historicalEra | 19th century ⓘ |
| laterConsolidatedInto | XX Corps (Union Army) NERFINISHED ⓘ |
| locationOfAction | Culp's Hill, Gettysburg, Pennsylvania NERFINISHED ⓘ |
| notableCommander |
Brigadier General Alpheus S. Williams
NERFINISHED
ⓘ
Brigadier General Thomas H. Ruger NERFINISHED ⓘ |
| notableEngagement |
Battle of Antietam
NERFINISHED
ⓘ
Battle of Cedar Mountain NERFINISHED ⓘ Battle of Chancellorsville NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Gettysburg, defense of Culp's Hill NERFINISHED ⓘ |
| notableFor | crucial defensive stand on Culp's Hill at Gettysburg ⓘ |
| participatedIn |
Chancellorsville Campaign
NERFINISHED
ⓘ
Gettysburg Campaign NERFINISHED ⓘ Maryland Campaign NERFINISHED ⓘ |
| partOf | XII Corps (Union Army) NERFINISHED ⓘ |
| role | infantry ⓘ |
| serviceBranch | United States Volunteers NERFINISHED ⓘ |
| side | Union ⓘ |
| theater | Eastern Theater of the American Civil War NERFINISHED ⓘ |
| type | infantry division ⓘ |
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: 1st Division, XII Corps Description of subject: The 1st Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.