1955 bombing of Plaza de Mayo
E198911
The 1955 bombing of Plaza de Mayo was a deadly aerial attack by Argentine Navy and Air Force units on a pro-Perón crowd in Buenos Aires, marking a key turning point in the events leading to the overthrow of President Juan Domingo Perón.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 1955 bombing of Plaza de Mayo canonical | 1 |
| Bombardeo de Plaza de Mayo de 1955 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1778069 — 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: 1955 bombing of Plaza de Mayo Context triple: [Plaza de Mayo, significantEvent, 1955 bombing of Plaza de Mayo]
-
A.
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.
-
B.
Massacre of August 2, 1810 in Quito
The Massacre of August 2, 1810 in Quito was a brutal Spanish crackdown in which colonial forces killed numerous supporters of the early independence movement, galvanizing resistance in what is now Ecuador.
-
C.
Sanjurjada coup attempt of 1932
The Sanjurjada coup attempt of 1932 was a failed right-wing military uprising in Spain led by General José Sanjurjo against the Second Spanish Republic.
-
D.
1973 Chilean coup d'état
The 1973 Chilean coup d'état was a military overthrow of President Salvador Allende that marked the violent end of Chile's democracy and the beginning of General Augusto Pinochet's dictatorship.
-
E.
1950 Utuado Uprising
The 1950 Utuado Uprising was an armed revolt in the town of Utuado, Puerto Rico, in which Nationalist Party militants rose against U.S. colonial rule as part of a broader island-wide insurrection.
- 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: 1955 bombing of Plaza de Mayo Target entity description: The 1955 bombing of Plaza de Mayo was a deadly aerial attack by Argentine Navy and Air Force units on a pro-Perón crowd in Buenos Aires, marking a key turning point in the events leading to the overthrow of President Juan Domingo Perón.
-
A.
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.
-
B.
Massacre of August 2, 1810 in Quito
The Massacre of August 2, 1810 in Quito was a brutal Spanish crackdown in which colonial forces killed numerous supporters of the early independence movement, galvanizing resistance in what is now Ecuador.
-
C.
Sanjurjada coup attempt of 1932
The Sanjurjada coup attempt of 1932 was a failed right-wing military uprising in Spain led by General José Sanjurjo against the Second Spanish Republic.
-
D.
1973 Chilean coup d'état
The 1973 Chilean coup d'état was a military overthrow of President Salvador Allende that marked the violent end of Chile's democracy and the beginning of General Augusto Pinochet's dictatorship.
-
E.
1950 Utuado Uprising
The 1950 Utuado Uprising was an armed revolt in the town of Utuado, Puerto Rico, in which Nationalist Party militants rose against U.S. colonial rule as part of a broader island-wide insurrection.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
aerial bombing
ⓘ
event in Argentine history ⓘ massacre ⓘ political violence incident ⓘ |
| alsoKnownAs |
1955 bombing of Plaza de Mayo
ⓘ
surface form:
Bombardeo de Plaza de Mayo de 1955
|
| branchOfMilitaryInvolved |
Argentine Air Force
ⓘ
surface form:
Argentine Air Force units
Argentine Navy ⓘ
surface form:
Argentine Navy aviation units
|
| capitalOfCountry | Argentina ⓘ |
| cause | attempt to overthrow President Juan Domingo Perón ⓘ |
| chronology | occurred during the first half of 1955 ⓘ |
| city | Buenos Aires ⓘ |
| country | Argentina ⓘ |
| date | 16 June 1955 ⓘ |
| followedBy |
Revolución Libertadora coup of September 1955
ⓘ
intensified repression and political polarization ⓘ |
| governmentInPower | presidency of Juan Domingo Perón ⓘ |
| languageOfAlternateName | Spanish ⓘ |
| location |
Buenos Aires
ⓘ
Plaza de Mayo ⓘ |
| motive | anti-Peronist coup attempt ⓘ |
| partOf |
Revolución Libertadora
ⓘ
events leading to the overthrow of Juan Domingo Perón ⓘ |
| perpetrator |
Argentine Air Force
ⓘ
Argentine Navy ⓘ |
| politicalContext |
conflict between Peronism and anti-Peronism
ⓘ
crisis of Juan Domingo Perón’s second presidency ⓘ |
| precededBy | growing military opposition to Perón ⓘ |
| relatedTo |
Argentine Armed Forces
ⓘ
Juan Domingo Perón ⓘ Revolución Libertadora coup of September 1955 ⓘ
surface form:
Revolución Libertadora coup
overthrow of Juan Domingo Perón in September 1955 ⓘ |
| result |
escalation of political conflict in Argentina
ⓘ
hundreds of civilian casualties ⓘ injuries to many civilians ⓘ radicalization of Peronist and anti-Peronist sectors ⓘ significant number of deaths ⓘ |
| significance |
key turning point in the downfall of Juan Domingo Perón
ⓘ
one of the deadliest episodes of political violence in 20th-century Argentina ⓘ |
| target |
Casa Rosada area
ⓘ
pro-Perón crowd ⓘ supporters of Juan Domingo Perón ⓘ |
| typeOfAttack | aerial bombardment ⓘ |
| victim |
Peronist demonstrators
ⓘ
civilian population in downtown Buenos Aires ⓘ |
| weaponUsed |
bombs
ⓘ
machine-gun fire from aircraft ⓘ |
| year | 1955 ⓘ |
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: 1955 bombing of Plaza de Mayo Description of subject: The 1955 bombing of Plaza de Mayo was a deadly aerial attack by Argentine Navy and Air Force units on a pro-Perón crowd in Buenos Aires, marking a key turning point in the events leading to the overthrow of President Juan Domingo Perón.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Bombardeo de Plaza de Mayo de 1955