September 18 Incident
E312141
The September 18 Incident was a staged 1931 explosion by the Japanese military near Mukden used as a pretext to invade and occupy Manchuria, marking a key escalation in Japanese aggression in China before World War II.
All labels observed (1)
| Label | Occurrences |
|---|---|
| September 18 Incident canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2938401 — 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: September 18 Incident Context triple: [Mukden Incident, alsoKnownAs, September 18 Incident]
-
A.
February 26 Incident
The February 26 Incident was a 1936 attempted coup d'état in Tokyo led by young Imperial Japanese Army officers seeking to purge the government and military leadership in favor of a more radical, militarist regime.
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B.
31 March Incident
The 31 March Incident was a 1909 counterrevolutionary uprising in the Ottoman Empire, led by conservative and religious factions in Istanbul against the Young Turk constitutional regime.
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C.
Kanto Massacre of Koreans
The Kanto Massacre of Koreans was a 1923 wave of mob and military violence in Japan in which thousands of Koreans were killed amid false rumors and xenophobic panic following the Great Kanto Earthquake.
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D.
Musha Incident
The Musha Incident was a 1930 uprising by Indigenous Seediq people against Japanese colonial rule in Taiwan, marked by a violent attack on Japanese settlers and a brutal military crackdown in response.
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E.
Bombardment of Yeonpyeong
The Bombardment of Yeonpyeong was a 2010 North Korean artillery attack on the South Korean island of Yeonpyeong that marked one of the most serious military clashes between the two Koreas since the Korean War.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: September 18 Incident Target entity description: The September 18 Incident was a staged 1931 explosion by the Japanese military near Mukden used as a pretext to invade and occupy Manchuria, marking a key escalation in Japanese aggression in China before World War II.
-
A.
February 26 Incident
The February 26 Incident was a 1936 attempted coup d'état in Tokyo led by young Imperial Japanese Army officers seeking to purge the government and military leadership in favor of a more radical, militarist regime.
-
B.
31 March Incident
The 31 March Incident was a 1909 counterrevolutionary uprising in the Ottoman Empire, led by conservative and religious factions in Istanbul against the Young Turk constitutional regime.
-
C.
Kanto Massacre of Koreans
The Kanto Massacre of Koreans was a 1923 wave of mob and military violence in Japan in which thousands of Koreans were killed amid false rumors and xenophobic panic following the Great Kanto Earthquake.
-
D.
Musha Incident
The Musha Incident was a 1930 uprising by Indigenous Seediq people against Japanese colonial rule in Taiwan, marked by a violent attack on Japanese settlers and a brutal military crackdown in response.
-
E.
Bombardment of Yeonpyeong
The Bombardment of Yeonpyeong was a 2010 North Korean artillery attack on the South Korean island of Yeonpyeong that marked one of the most serious military clashes between the two Koreas since the Korean War.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
false flag operation
ⓘ
historical event ⓘ military incident ⓘ pretext for war ⓘ |
| actualCause | planned operation by Japanese military ⓘ |
| aftermath |
League of Nations investigation
ⓘ
Lytton Commission report ⓘ |
| alsoKnownAs |
Mukden Incident
ⓘ
surface form:
Manchurian Incident
Mukden Incident ⓘ |
| commemoratedOn | September 18 ⓘ |
| conflict |
Sino-Japanese War (1937–1945)
ⓘ
surface form:
Second Sino-Japanese War (prelude)
|
| countryAtTime | Republic of China ⓘ |
| date | 1931-09-18 ⓘ |
| involvedParty |
China
ⓘ
Japanese Kwantung Army ⓘ
surface form:
Imperial Japanese Army Kwantung Army
Japan ⓘ |
| justificationClaimedByJapan | Chinese sabotage of railway ⓘ |
| ledTo |
Japan’s withdrawal from the League of Nations
ⓘ
international condemnation of Japan ⓘ |
| location |
Manchuria
ⓘ
Shenyang ⓘ
surface form:
Mukden
near Mukden ⓘ |
| method | staged explosion ⓘ |
| natureOfAttack | sabotage ⓘ |
| opponent | Chinese forces in Manchuria ⓘ |
| partOf | Japanese expansion in Northeast China ⓘ |
| perpetrator | Imperial Japanese Army ⓘ |
| perpetratorUnit |
Japanese Kwantung Army
ⓘ
surface form:
Kwantung Army
|
| railwayOwner | South Manchuria Railway Company ⓘ |
| region |
Manchuria
ⓘ
surface form:
Northeast China
|
| relatedTo |
Japanese occupation of Manchuria
ⓘ
surface form:
Japanese invasion of Manchuria
Sino-Japanese War (1937–1945) ⓘ
surface form:
Second Sino-Japanese War
Pacific War ⓘ
surface form:
World War II in Asia
Manchukuo ⓘ
surface form:
establishment of Manchukuo
|
| rememberedAs | symbol of Japanese imperialism in China ⓘ |
| result |
Japanese control of Manchuria
ⓘ
escalation of Japanese aggression in China ⓘ establishment of Manchukuo ⓘ weakening of Chinese sovereignty in Manchuria ⓘ |
| significance |
considered a prelude to the Second Sino-Japanese War
ⓘ
considered an early step toward World War II in Asia ⓘ marked a key escalation in Japanese expansionism in East Asia ⓘ |
| target |
South Manchuria Railway Company
ⓘ
surface form:
South Manchuria Railway
|
| typeOfExplosion | railway line explosion ⓘ |
| usedAsPretextFor |
Japanese occupation of Manchuria
ⓘ
surface form:
Japanese invasion of Manchuria
occupation of Manchuria ⓘ |
| year | 1931 ⓘ |
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: September 18 Incident Description of subject: The September 18 Incident was a staged 1931 explosion by the Japanese military near Mukden used as a pretext to invade and occupy Manchuria, marking a key escalation in Japanese aggression in China before World War II.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.