Battle of Antietam
E24583
The Battle of Antietam was a pivotal 1862 clash in the American Civil War, known as the bloodiest single day in U.S. military history and a turning point that enabled Abraham Lincoln to issue the Emancipation Proclamation.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Battle of Antietam canonical | 81 |
| Battle of Sharpsburg | 1 |
| Battlefield of Antietam | 1 |
| Cornfield at Antietam | 1 |
| Union Army operations at Antietam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T51321 — 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.
Target entity: Battle of Antietam Context triple: [American Civil War, hasPart, Battle of Antietam]
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A.
Battle of Baltimore
The Battle of Baltimore was a key War of 1812 engagement in which American forces successfully defended the city and Fort McHenry from British attack, inspiring the lyrics of the United States national anthem.
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B.
Battle of Shiloh
The Battle of Shiloh was a major early American Civil War clash in April 1862 in southwestern Tennessee, marked by heavy casualties and a hard-fought Union victory that foreshadowed the war’s bloody scale.
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C.
Battle of Bladensburg
The Battle of Bladensburg was an 1814 War of 1812 engagement near Washington, D.C., in which British forces routed American defenders, opening the way for the subsequent burning of the U.S. capital.
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D.
First Battle of Bull Run
The First Battle of Bull Run was the opening major land battle of the American Civil War, resulting in a Confederate victory and shattering early illusions of a quick and easy conflict.
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E.
Battle of Brandywine
The Battle of Brandywine was a major 1777 engagement in the American Revolutionary War in which British forces defeated George Washington’s Continental Army, leading to the capture of Philadelphia.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Battle of Antietam Target entity description: The Battle of Antietam was a pivotal 1862 clash in the American Civil War, known as the bloodiest single day in U.S. military history and a turning point that enabled Abraham Lincoln to issue the Emancipation Proclamation.
-
A.
Battle of Baltimore
The Battle of Baltimore was a key War of 1812 engagement in which American forces successfully defended the city and Fort McHenry from British attack, inspiring the lyrics of the United States national anthem.
-
B.
Battle of Shiloh
The Battle of Shiloh was a major early American Civil War clash in April 1862 in southwestern Tennessee, marked by heavy casualties and a hard-fought Union victory that foreshadowed the war’s bloody scale.
-
C.
Battle of Bladensburg
The Battle of Bladensburg was an 1814 War of 1812 engagement near Washington, D.C., in which British forces routed American defenders, opening the way for the subsequent burning of the U.S. capital.
-
D.
First Battle of Bull Run
The First Battle of Bull Run was the opening major land battle of the American Civil War, resulting in a Confederate victory and shattering early illusions of a quick and easy conflict.
-
E.
Battle of Brandywine
The Battle of Brandywine was a major 1777 engagement in the American Revolutionary War in which British forces defeated George Washington’s Continental Army, leading to the capture of Philadelphia.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War battle
ⓘ
battle ⓘ |
| alsoKnownAs |
Battle of Antietam
ⓘ
surface form:
Battle of Sharpsburg
|
| belligerent |
Confederate States of America
ⓘ
Union ⓘ |
| campaignObjective |
Gettysburg Campaign
ⓘ
surface form:
Confederate invasion of the North
|
| casualtyDescription | heavy casualties on both sides ⓘ |
| commander |
George McClellan
ⓘ
surface form:
George B. McClellan
Robert E. Lee ⓘ |
| commanderRole |
George McClellan
ⓘ
surface form:
George B. McClellan commanded Union forces
Robert E. Lee ⓘ
surface form:
Robert E. Lee commanded Confederate forces
|
| ConfederateArmy | Army of Northern Virginia ⓘ |
| ConfederateCasualtiesApprox | about 10,300 ⓘ |
| ConfederateObjective | gain foreign recognition through a victory on Union soil ⓘ |
| conflictIn | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | September 17, 1862 ⓘ |
| followedBy |
Battle of Fredericksburg
ⓘ
Battle of Shepherdstown ⓘ |
| front | Eastern Theater of the American Civil War ⓘ |
| killedWoundedMissingApprox | about 23,000 ⓘ |
| legacy |
led to shift of war aims toward emancipation
ⓘ
major turning point in the American Civil War ⓘ |
| location |
Antietam Creek, Maryland
ⓘ
surface form:
Antietam Creek
Sharpsburg, Maryland ⓘ Washington County, Maryland ⓘ |
| memorial | Antietam National Battlefield ⓘ |
| notableEvent | first major battle of the Civil War fought on Union soil ⓘ |
| notableFeature | bloodiest single day in American military history ⓘ |
| partOf | Maryland Campaign ⓘ |
| politicalConsequence |
discouraged potential British recognition of the Confederacy
ⓘ
discouraged potential French recognition of the Confederacy ⓘ enabled preliminary Emancipation Proclamation ⓘ |
| precededBy | Battle of South Mountain ⓘ |
| preservedAs |
National Battlefields
ⓘ
surface form:
U.S. National Battlefield
|
| result |
strategic Union victory
ⓘ
tactically inconclusive ⓘ |
| state | Maryland ⓘ |
| stateControl | National Park Service ⓘ |
| strategicSignificance |
gave Abraham Lincoln political capital to issue the Emancipation Proclamation
ⓘ
halted first major Confederate invasion of the North ⓘ |
| terrainFeature |
Burnside Bridge
ⓘ
Sunken Road ⓘ cornfield ⓘ |
| UnionArmy | Army of the Potomac ⓘ |
| UnionCasualtiesApprox | about 12,400 ⓘ |
| UnionObjective | drive Confederate forces from Maryland ⓘ |
| 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.
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.
Subject: Battle of Antietam Description of subject: The Battle of Antietam was a pivotal 1862 clash in the American Civil War, known as the bloodiest single day in U.S. military history and a turning point that enabled Abraham Lincoln to issue the Emancipation Proclamation.
Referenced by (85)
Full triples — surface form annotated when it differs from this entity's canonical label.