25 April Revolution
E12961
The 25 April Revolution was the 1974 military-led uprising in Portugal that peacefully overthrew the Estado Novo dictatorship and paved the way for democracy and decolonization.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 25 April Revolution canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T119235 — 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: 25 April Revolution Context triple: [Carnation Revolution, alsoKnownAs, 25 April Revolution]
-
A.
August Revolution in Vietnam
The August Revolution in Vietnam was a 1945 nationwide uprising led by the Viet Minh that overthrew French colonial and Japanese-backed rule, paving the way for the declaration of Vietnamese independence.
-
B.
March 1st Movement
The March 1st Movement was a major 1919 Korean independence uprising against Japanese colonial rule, marked by nationwide peaceful demonstrations that became a symbol of Korean nationalism and resistance.
-
C.
Hungarian Revolution of 1956
The Hungarian Revolution of 1956 was a nationwide uprising against Soviet-imposed policies and control in Hungary, briefly challenging communist rule before being violently suppressed by Soviet forces.
-
D.
Prague Spring
Prague Spring was a brief period of political liberalization and reform in communist Czechoslovakia in 1968 that was ultimately crushed by a Soviet-led invasion.
-
E.
May Coup of 1926
The May Coup of 1926 was a military takeover led by Józef Piłsudski that overthrew Poland’s democratic government and ushered in the authoritarian Sanation regime in the Second Polish Republic.
- 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: 25 April Revolution Target entity description: The 25 April Revolution was the 1974 military-led uprising in Portugal that peacefully overthrew the Estado Novo dictatorship and paved the way for democracy and decolonization.
-
A.
August Revolution in Vietnam
The August Revolution in Vietnam was a 1945 nationwide uprising led by the Viet Minh that overthrew French colonial and Japanese-backed rule, paving the way for the declaration of Vietnamese independence.
-
B.
March 1st Movement
The March 1st Movement was a major 1919 Korean independence uprising against Japanese colonial rule, marked by nationwide peaceful demonstrations that became a symbol of Korean nationalism and resistance.
-
C.
Hungarian Revolution of 1956
The Hungarian Revolution of 1956 was a nationwide uprising against Soviet-imposed policies and control in Hungary, briefly challenging communist rule before being violently suppressed by Soviet forces.
-
D.
Prague Spring
Prague Spring was a brief period of political liberalization and reform in communist Czechoslovakia in 1968 that was ultimately crushed by a Soviet-led invasion.
-
E.
May Coup of 1926
The May Coup of 1926 was a military takeover led by Józef Piłsudski that overthrew Poland’s democratic government and ushered in the authoritarian Sanation regime in the Second Polish Republic.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
military coup
ⓘ
political event ⓘ revolution ⓘ |
| alsoKnownAs | Carnation Revolution ⓘ |
| characteristic |
largely bloodless
ⓘ
minimal armed resistance ⓘ |
| commemoratedOn | April 25 ⓘ |
| country | Portugal ⓘ |
| endDate | 1974-04-25 ⓘ |
| followedBy |
democratic transition in Portugal
ⓘ
independence of Angola ⓘ independence of Cape Verde ⓘ independence of Guinea-Bissau ⓘ independence of Mozambique ⓘ independence of São Tomé and Príncipe ⓘ |
| hasCause |
discontent with prolonged colonial wars in Africa
ⓘ
economic stagnation in Portugal ⓘ opposition to Estado Novo authoritarian regime ⓘ repression by PIDE political police ⓘ |
| hasType | peaceful revolution ⓘ |
| influenced |
1976 Portuguese Constitution
ⓘ
surface form:
Portuguese Constitution of 1976
|
| keyFigure |
António de Spínola
ⓘ
Marcelo Caetano ⓘ |
| leader | Otelo Saraiva de Carvalho ⓘ |
| location | Lisbon ⓘ |
| mediaSignal |
broadcast of the song "E Depois do Adeus"
ⓘ
broadcast of the song "Grândola, Vila Morena" ⓘ |
| namedAfter | use of carnations by civilians and soldiers ⓘ |
| organizer | Armed Forces Movement ⓘ |
| overthrew |
Portuguese Third Republic
ⓘ
surface form:
Estado Novo
Marcelo Caetano ⓘ
surface form:
Marcelo Caetano government
|
| participant |
Portuguese Armed Forces
ⓘ
Portuguese civilians ⓘ |
| partOf | Cold War history ⓘ |
| precededBy |
Estado Novo regime
ⓘ
Portuguese Colonial War ⓘ |
| result |
beginning of Portuguese decolonization
ⓘ
end of Portuguese Colonial War ⓘ establishment of the Third Portuguese Republic ⓘ overthrow of Estado Novo dictatorship ⓘ transition to democracy in Portugal ⓘ withdrawal from African colonies ⓘ |
| significance | marked the end of one of Europe’s longest dictatorships ⓘ |
| startDate | 1974-04-25 ⓘ |
| symbol | red carnation ⓘ |
| timePeriod | 20th century ⓘ |
| triggered | Processo Revolucionário em Curso ⓘ |
| year | 1974 ⓘ |
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: 25 April Revolution Description of subject: The 25 April Revolution was the 1974 military-led uprising in Portugal that peacefully overthrew the Estado Novo dictatorship and paved the way for democracy and decolonization.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.