Showa era
E5564
The Shōwa era was the period of Emperor Hirohito’s reign in Japan (1926–1989), marked by militarization and World War II, followed by rapid postwar economic growth and modernization.
All labels observed (21)
| Label | Occurrences |
|---|---|
| Shōwa period | 85 |
| Showa period | 17 |
| Shōwa era | 14 |
| Shōwa | 8 |
| Shōwa period (pre-1945) | 8 |
| Showa era canonical | 7 |
| early Shōwa period | 6 |
| early Showa period | 3 |
| 昭和時代 | 3 |
| Showa period (pre-1945) | 2 |
| Shōwa period (pre-1947) | 2 |
| Showa | 1 |
| Showa era (pre-1945) | 1 |
| Showa period before 1945 | 1 |
| Shōwa era (prewar) | 1 |
| Shōwa era of Japan | 1 |
| Shōwa period (early) | 1 |
| Shōwa period (pre–World War II) | 1 |
| Shōwa period Japan | 1 |
| Shōwa period of Japan | 1 |
| 昭和 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8806 — 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: Showa era Context triple: [Imperial Universities of Japan, timePeriod, Showa era]
-
A.
Taisho era
The Taisho era was a period in Japanese history from 1912 to 1926 marked by political liberalization, cultural modernization, and the growth of urban middle-class society.
-
B.
Meiji era
The Meiji era was a transformative period in Japanese history (1868–1912) marked by rapid modernization, industrialization, and the establishment of Western-style political, educational, and social institutions.
-
C.
Emperor Hirohito
Emperor Hirohito was the Shōwa-era emperor of Japan who reigned during World War II and oversaw the country’s militarist expansion, defeat, and subsequent postwar reconstruction.
-
D.
Kimigayo
Kimigayo is the national anthem of Japan, known for its extremely short length and lyrics derived from a Heian-period waka poem expressing wishes for the emperor’s enduring reign.
-
E.
Korea under Japanese rule
Korea under Japanese rule was the period from 1910 to 1945 when the Korean Peninsula was annexed and governed as a colony of the Japanese Empire, marked by political repression, cultural assimilation policies, and economic exploitation.
- 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: Showa era Target entity description: The Shōwa era was the period of Emperor Hirohito’s reign in Japan (1926–1989), marked by militarization and World War II, followed by rapid postwar economic growth and modernization.
-
A.
Taisho era
The Taisho era was a period in Japanese history from 1912 to 1926 marked by political liberalization, cultural modernization, and the growth of urban middle-class society.
-
B.
Meiji era
The Meiji era was a transformative period in Japanese history (1868–1912) marked by rapid modernization, industrialization, and the establishment of Western-style political, educational, and social institutions.
-
C.
Emperor Hirohito
Emperor Hirohito was the Shōwa-era emperor of Japan who reigned during World War II and oversaw the country’s militarist expansion, defeat, and subsequent postwar reconstruction.
-
D.
Kimigayo
Kimigayo is the national anthem of Japan, known for its extremely short length and lyrics derived from a Heian-period waka poem expressing wishes for the emperor’s enduring reign.
-
E.
Korea under Japanese rule
Korea under Japanese rule was the period from 1910 to 1945 when the Korean Peninsula was annexed and governed as a colony of the Japanese Empire, marked by political repression, cultural assimilation policies, and economic exploitation.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese era
ⓘ
historical era ⓘ |
| capital | Tokyo ⓘ |
| constitutionAdopted |
Constitution of Japan
ⓘ
surface form:
1947 Japanese Constitution
|
| country | Japan ⓘ |
| culturalDevelopment |
growth of mass consumer culture
ⓘ
rise of Japanese popular culture and media industries ⓘ |
| economicPhase |
high-speed economic growth
ⓘ
mature economy and bubble period ⓘ postwar reconstruction ⓘ prewar industrialization ⓘ wartime controlled economy ⓘ |
| endDate | 1989-01-07 ⓘ |
| eraNameMeaning | Bright peace ⓘ |
| foreignPolicyEarly | imperialist expansion ⓘ |
| foreignPolicyPostwar | pacifism ⓘ |
| governmentTypeEarly | militarist monarchy ⓘ |
| governmentTypePostwar | constitutional monarchy ⓘ |
| keyAlliancePostwar |
United States–Japan security alliance
ⓘ
surface form:
Japan–United States alliance
|
| keyLegalChange | renunciation of war in Article 9 of the Constitution ⓘ |
| majorEvent |
1964 Summer Olympics
ⓘ
surface form:
1964 Tokyo Olympics
Expo ’70 Commemorative Park ⓘ
surface form:
1970 Osaka Expo
Allied occupation reforms ⓘ atomic bombing of Hiroshima ⓘ
surface form:
Atomic bombing of Hiroshima
atomic bombing of Nagasaki ⓘ
surface form:
Atomic bombing of Nagasaki
attack on Pearl Harbor ⓘ
surface form:
Attack on Pearl Harbor
Japanese occupation of Manchuria ⓘ
surface form:
Invasion of Manchuria
Japanese asset price bubble ⓘ Japan’s surrender in World War II ⓘ Korean War economic boom ⓘ Japanese occupation of Manchuria ⓘ
surface form:
Mukden Incident
Pacific War ⓘ Sino-Japanese War (1937–1945) ⓘ
surface form:
Second Sino-Japanese War
International Military Tribunal for the Far East ⓘ
surface form:
Tokyo War Crimes Tribunal
oil shocks of the 1970s ⓘ |
| namedAfter |
Emperor Hirohito
ⓘ
surface form:
Emperor Shōwa
|
| periodIncludes |
Allied occupation of Japan
ⓘ
Cold War era in Japan ⓘ Japanese militarist expansion ⓘ Sino-Japanese War (1937–1945) ⓘ
surface form:
Second Sino-Japanese War
World War II ⓘ postwar economic miracle ⓘ |
| populationTrend |
baby boom after World War II
ⓘ
rapid urbanization ⓘ |
| predecessorEra |
Taisho era
ⓘ
surface form:
Taishō era
|
| reigningEmperor |
Emperor Hirohito
ⓘ
surface form:
Emperor Shōwa
Emperor Hirohito ⓘ
surface form:
Hirohito
|
| startDate | 1926-12-25 ⓘ |
| successorEra |
Heisei
ⓘ
surface form:
Heisei era
|
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: Showa era Description of subject: The Shōwa era was the period of Emperor Hirohito’s reign in Japan (1926–1989), marked by militarization and World War II, followed by rapid postwar economic growth and modernization.
Referenced by (165)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Showa
subject surface form:
Gunichi Mikawa
this entity surface form:
Shōwa period
subject surface form:
King Kong vs. Godzilla
this entity surface form:
Shōwa era
this entity surface form:
Shōwa period
this entity surface form:
Shōwa period
this entity surface form:
Shōwa era
this entity surface form:
Shōwa period
this entity surface form:
Shōwa period
this entity surface form:
Shōwa period of Japan
this entity surface form:
Shōwa era of Japan
this entity surface form:
Shōwa period
this entity surface form:
Shōwa period
this entity surface form:
Shōwa period