1958 Portuguese presidential election
E636469
The 1958 Portuguese presidential election was a pivotal and highly contested vote during the Estado Novo dictatorship, marked by General Humberto Delgado’s unprecedented opposition challenge to the regime’s long-standing authoritarian rule.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1958 Portuguese presidential election canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7036627 — 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: 1958 Portuguese presidential election Context triple: [Humberto Delgado, candidateInElection, 1958 Portuguese presidential election]
-
A.
Portuguese presidential election, 1980
The Portuguese presidential election of 1980 was a national vote held to choose Portugal’s head of state during the country’s early post-revolution democratic period.
-
B.
Portuguese presidential election, 1976
The Portuguese presidential election of 1976 was the first presidential contest held after the Carnation Revolution, helping to consolidate Portugal’s new democratic regime.
-
C.
Portuguese presidential election, 2011
The Portuguese presidential election of 2011 was the national vote in which incumbent president Aníbal Cavaco Silva won re-election for a second term as Portugal’s head of state.
-
D.
Portuguese presidential election, 2006
The Portuguese presidential election of 2006 was the national vote in which former prime minister Aníbal Cavaco Silva was elected President of Portugal.
-
E.
Portuguese legislative election, 1985
The Portuguese legislative election of 1985 was a national parliamentary vote that led to the rise of Aníbal Cavaco Silva’s Social Democratic Party and marked the beginning of a long period of center-right governance in Portugal.
- 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: 1958 Portuguese presidential election Target entity description: The 1958 Portuguese presidential election was a pivotal and highly contested vote during the Estado Novo dictatorship, marked by General Humberto Delgado’s unprecedented opposition challenge to the regime’s long-standing authoritarian rule.
-
A.
Portuguese presidential election, 1980
The Portuguese presidential election of 1980 was a national vote held to choose Portugal’s head of state during the country’s early post-revolution democratic period.
-
B.
Portuguese presidential election, 1976
The Portuguese presidential election of 1976 was the first presidential contest held after the Carnation Revolution, helping to consolidate Portugal’s new democratic regime.
-
C.
Portuguese presidential election, 2011
The Portuguese presidential election of 2011 was the national vote in which incumbent president Aníbal Cavaco Silva won re-election for a second term as Portugal’s head of state.
-
D.
Portuguese presidential election, 2006
The Portuguese presidential election of 2006 was the national vote in which former prime minister Aníbal Cavaco Silva was elected President of Portugal.
-
E.
Portuguese legislative election, 1985
The Portuguese legislative election of 1985 was a national parliamentary vote that led to the rise of Aníbal Cavaco Silva’s Social Democratic Party and marked the beginning of a long period of center-right governance in Portugal.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | presidential election ⓘ |
| campaignSloganOfHumbertoDelgado | “Obviamente, demito-o” ⓘ |
| characterizedBy |
censorship
ⓘ
intimidation of opposition ⓘ political repression ⓘ widespread electoral fraud ⓘ |
| considered | turning point in opposition to Estado Novo ⓘ |
| country | Portugal ⓘ |
| electoralIntegrity | widely questioned ⓘ |
| electoralSystem | indirect presidential election with controlled franchise ⓘ |
| hasEndDate | 1958-06-08 ⓘ |
| hasStartDate | 1958-06-08 ⓘ |
| hasYear | 1958 ⓘ |
| headOfStateAfterElection | Américo Tomás ⓘ |
| headOfStateBeforeElection | Francisco Craveiro Lopes ⓘ |
| heldDuring |
Estado Novo dictatorship
ⓘ
linked to:
Estado Novo regime
|
| historicalSignificance | precursor to later anti-regime movements in Portugal ⓘ |
| incumbentPrimeMinister | António de Oliveira Salazar ⓘ |
| influenced | growth of organized democratic opposition in Portugal ⓘ |
| language | Portuguese ⓘ |
| legalFramework |
Constitution of 1933 (Portugal)
ⓘ
linked to:
Portuguese Constitution of 1933
|
| locatedIn |
Portuguese Republic
ⓘ
linked to:
Portugal
|
| mainGovernmentCandidate | Américo Tomás ⓘ |
| mainOppositionCandidate | Humberto Delgado ⓘ |
| mediaEnvironment | state-controlled media ⓘ |
| nextElection | 1965 Portuguese presidential election ⓘ |
| notableFor |
Humberto Delgado’s popular campaign
ⓘ
mass mobilization against the regime ⓘ strong opposition challenge to Estado Novo ⓘ |
| officeContested | President of Portugal ⓘ |
| officialResultRunnerUp | Humberto Delgado ⓘ |
| officialResultWinner | Américo Tomás ⓘ |
| oppositionIdeology | democratic opposition to authoritarianism ⓘ |
| oppositionSupportBase |
segments of working class
ⓘ
students and intellectuals ⓘ urban middle classes ⓘ |
| partOf | Estado Novo (Portugal) ⓘ |
| previousElection | 1951 Portuguese presidential election ⓘ |
| regimeType | authoritarian dictatorship ⓘ |
| resultedIn | increased repression against opposition ⓘ |
| supervisedBy | Estado Novo authorities ⓘ |
| supportedBy | António de Oliveira Salazar ⓘ |
| timePeriod | 20th century ⓘ |
| tookPlaceInContextOf | Cold War ⓘ |
| typeOfElection | national election ⓘ |
| votingRestrictions | limited and controlled electorate ⓘ |
| winner | Américo Tomás ⓘ |
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: 1958 Portuguese presidential election Description of subject: The 1958 Portuguese presidential election was a pivotal and highly contested vote during the Estado Novo dictatorship, marked by General Humberto Delgado’s unprecedented opposition challenge to the regime’s long-standing authoritarian rule.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.