Fall of Phnom Penh (17 April 1975)
E157797
The Fall of Phnom Penh on 17 April 1975 marked the capture of Cambodia’s capital by the Khmer Rouge, ending the Cambodian Civil War and ushering in a brutal revolutionary regime.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T1385742 — 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: Fall of Phnom Penh (17 April 1975) Context triple: [Cambodian Civil War, significantEvent, Fall of Phnom Penh (17 April 1975)]
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A.
Fall of Saigon
The Fall of Saigon was the April 30, 1975 capture of South Vietnam’s capital by North Vietnamese forces, marking the end of the Vietnam War and the reunification of Vietnam under communist control.
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B.
Battle of Dien Bien Phu
The Battle of Dien Bien Phu was a decisive 1954 confrontation in Vietnam in which Viet Minh forces defeated the French, leading to the end of French colonial rule in Indochina.
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C.
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.
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D.
Nguyen Hue Offensive
The Nguyen Hue Offensive, better known as the Easter Offensive, was a major 1972 North Vietnamese conventional military campaign against South Vietnam during the Vietnam War.
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E.
Dien Bien Phu
Dien Bien Phu is a town in northwestern Vietnam best known as the site of the decisive 1954 battle that ended French colonial rule in Indochina.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Fall of Phnom Penh (17 April 1975) Target entity description: The Fall of Phnom Penh on 17 April 1975 marked the capture of Cambodia’s capital by the Khmer Rouge, ending the Cambodian Civil War and ushering in a brutal revolutionary regime.
-
A.
Fall of Saigon
The Fall of Saigon was the April 30, 1975 capture of South Vietnam’s capital by North Vietnamese forces, marking the end of the Vietnam War and the reunification of Vietnam under communist control.
-
B.
Battle of Dien Bien Phu
The Battle of Dien Bien Phu was a decisive 1954 confrontation in Vietnam in which Viet Minh forces defeated the French, leading to the end of French colonial rule in Indochina.
-
C.
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.
-
D.
Nguyen Hue Offensive
The Nguyen Hue Offensive, better known as the Easter Offensive, was a major 1972 North Vietnamese conventional military campaign against South Vietnam during the Vietnam War.
-
E.
Dien Bien Phu
Dien Bien Phu is a town in northwestern Vietnam best known as the site of the decisive 1954 battle that ended French colonial rule in Indochina.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
battle
ⓘ
historical event ⓘ military event ⓘ |
| aftermath |
abolition of existing state institutions
ⓘ
establishment of Democratic Kampuchea ⓘ evacuation of Phnom Penh’s population to the countryside ⓘ execution and persecution of former officials and perceived enemies ⓘ |
| alsoKnownAs |
Fall of Phnom Penh (17 April 1975)
ⓘ
surface form:
Capture of Phnom Penh by the Khmer Rouge
Fall of Phnom Penh (17 April 1975) ⓘ
surface form:
Khmer Rouge takeover of Phnom Penh
|
| belligerent |
Khmer Rouge
ⓘ
Khmer Republic ⓘ
surface form:
Republic of Khmer (Lon Nol regime)
|
| capitalCaptured | Phnom Penh ⓘ |
| combatantCommander |
Khieu Samphan
ⓘ
Pol Pot ⓘ Son Sen ⓘ |
| context |
Cold War
ⓘ
U.S. withdrawal from Indochina ⓘ |
| country | Cambodia ⓘ |
| date | 1975-04-17 ⓘ |
| ended |
Khmer Republic
ⓘ
Lon Nol regime ⓘ |
| followedBy |
Cambodian genocide
ⓘ
Fall of Phnom Penh (17 April 1975) self-linksurface differs ⓘ
surface form:
Khmer Rouge evacuation of Phnom Penh
|
| ledTo |
establishment of a one-party communist state
ⓘ
forced collectivization policies in Cambodia ⓘ mass displacement of urban residents ⓘ |
| opponent |
Khmer Rouge
ⓘ
Khmer National Armed Forces (FANK) ⓘ
surface form:
Republic of Khmer armed forces
|
| partOf | Cambodian Civil War ⓘ |
| place | Phnom Penh ⓘ |
| precededBy |
U.S. bombing campaign in Cambodia
ⓘ
Fall of Phnom Penh (17 April 1975) self-linksurface differs ⓘ
surface form:
siege of Phnom Penh
|
| relatedTo |
Democratic Kampuchea
ⓘ
Fall of Saigon ⓘ Khmer Rouge ⓘ Pol Pot ⓘ Vietnam War ⓘ |
| result |
Khmer Rouge victory
ⓘ
beginning of Democratic Kampuchea regime ⓘ capture of Phnom Penh by Khmer Rouge ⓘ collapse of Lon Nol government ⓘ end of Cambodian Civil War ⓘ start of Khmer Rouge rule in Cambodia ⓘ |
| significance |
marked beginning of policies that led to Cambodian genocide
ⓘ
preceded mass evacuations of urban population ⓘ ushered in a radical communist revolutionary regime ⓘ |
| year | 1975 ⓘ |
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: Fall of Phnom Penh (17 April 1975) Description of subject: The Fall of Phnom Penh on 17 April 1975 marked the capture of Cambodia’s capital by the Khmer Rouge, ending the Cambodian Civil War and ushering in a brutal revolutionary regime.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.