El Calabozo massacre
E270951
The El Calabozo massacre was a 1982 atrocity during the Salvadoran Civil War in which the U.S.-trained Atlacatl Battalion killed hundreds of civilians, becoming one of the conflict’s most infamous human rights abuses.
All labels observed (2)
| Label | Occurrences |
|---|---|
| El Calabozo massacre canonical | 4 |
| UCA massacre | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2440546 — 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: El Calabozo massacre Context triple: [Atlacatl Battalion, notableFor, El Calabozo massacre]
-
A.
El Mozote massacre
The El Mozote massacre was a 1981 atrocity in which Salvadoran government troops killed hundreds of civilians, becoming one of the most infamous human rights violations of the Salvadoran Civil War.
-
B.
Hungerford massacre
The Hungerford massacre was a 1987 mass shooting in Hungerford, England, in which gunman Michael Ryan killed 16 people and led to significant changes in UK firearms legislation.
-
C.
Friday of Dignity massacre
The Friday of Dignity massacre was a pivotal 2011 attack on anti-government protesters in Sana'a that galvanized opposition to President Ali Abdullah Saleh and intensified the Yemeni Revolution.
-
D.
Weenen massacre
The Weenen massacre was an 1838 killing of Voortrekker settlers by Zulu forces in present-day South Africa, which became a pivotal flashpoint in the conflict between the Voortrekkers and the Zulu Kingdom.
-
E.
massacre at Cholula
The massacre at Cholula was a brutal 1519 slaughter of thousands of Indigenous inhabitants by Hernán Cortés and his forces during the Spanish conquest of the Aztec Empire.
- 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: El Calabozo massacre Target entity description: The El Calabozo massacre was a 1982 atrocity during the Salvadoran Civil War in which the U.S.-trained Atlacatl Battalion killed hundreds of civilians, becoming one of the conflict’s most infamous human rights abuses.
-
A.
El Mozote massacre
The El Mozote massacre was a 1981 atrocity in which Salvadoran government troops killed hundreds of civilians, becoming one of the most infamous human rights violations of the Salvadoran Civil War.
-
B.
Hungerford massacre
The Hungerford massacre was a 1987 mass shooting in Hungerford, England, in which gunman Michael Ryan killed 16 people and led to significant changes in UK firearms legislation.
-
C.
Friday of Dignity massacre
The Friday of Dignity massacre was a pivotal 2011 attack on anti-government protesters in Sana'a that galvanized opposition to President Ali Abdullah Saleh and intensified the Yemeni Revolution.
-
D.
Weenen massacre
The Weenen massacre was an 1838 killing of Voortrekker settlers by Zulu forces in present-day South Africa, which became a pivotal flashpoint in the conflict between the Voortrekkers and the Zulu Kingdom.
-
E.
massacre at Cholula
The massacre at Cholula was a brutal 1519 slaughter of thousands of Indigenous inhabitants by Hernán Cortés and his forces during the Spanish conquest of the Aztec Empire.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
crime against humanity
ⓘ
human rights violation ⓘ massacre ⓘ war crime ⓘ |
| aftermath |
demands for truth and justice by survivors
ⓘ
impunity for perpetrators ⓘ |
| conflict | Salvadoran Civil War ⓘ |
| country | El Salvador ⓘ |
| date |
1982
ⓘ
1982-08-21 ⓘ |
| documentedBy |
human rights NGOs
ⓘ
truth commission reports ⓘ |
| hasCause | state counterinsurgency operations against suspected guerrilla supporters ⓘ |
| hasContext | U.S. support for Salvadoran armed forces ⓘ |
| hasMemorialization | commemorations by survivors and relatives ⓘ |
| humanRightsCategory |
protection of civilians in armed conflict
ⓘ
right to life violation ⓘ |
| involvedOrganization |
United States military advisers
ⓘ
linked to:
United States military representatives
|
| languageOfToponym | Spanish ⓘ |
| legalStatus | largely unprosecuted ⓘ |
| location |
El Calabozo
ⓘ
Río Amatitán ⓘ San Vicente Department ⓘ |
| method | mass shooting ⓘ |
| motive | suspected collaboration of civilians with guerrilla forces ⓘ |
| notableFor |
large-scale killing of unarmed civilians
ⓘ
one of the most infamous atrocities of the Salvadoran Civil War ⓘ |
| numberOfVictims | hundreds of civilians ⓘ |
| opposingSide | Farabundo Martí National Liberation Front ⓘ |
| partOf | counterinsurgency campaign in El Salvador ⓘ |
| perpetrator |
Armed Forces of El Salvador
ⓘ
Atlacatl Battalion ⓘ |
| perpetratorAllegiance | Government of El Salvador ⓘ |
| recognizedAs | serious human rights abuse ⓘ |
| region | Central El Salvador ⓘ |
| relatedEvent |
El Mozote massacre
ⓘ
Sumpul River massacre ⓘ |
| result |
international condemnation by human rights organizations
ⓘ
mass displacement of local population ⓘ |
| targetedGroup | rural peasants ⓘ |
| timePeriod | Cold War ⓘ |
| trainingOfPerpetrators |
U.S.-trained Atlacatl Battalion
ⓘ
linked to:
Atlacatl Battalion
|
| typeOfCrime |
extrajudicial killing
ⓘ
mass atrocity ⓘ |
| victimType | civilian population ⓘ |
| weaponsUsed | small arms ⓘ |
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: El Calabozo massacre Description of subject: The El Calabozo massacre was a 1982 atrocity during the Salvadoran Civil War in which the U.S.-trained Atlacatl Battalion killed hundreds of civilians, becoming one of the conflict’s most infamous human rights abuses.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: El Calabozo massacre