Showa Day
E28716
Showa Day is a Japanese national holiday on April 29 that honors the reign and legacy of Emperor Showa (Hirohito) and encourages reflection on Japan’s history during his era.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Showa Day canonical | 5 |
| Birthday of Emperor Shōwa | 1 |
| Shōwa Day | 1 |
| Shōwa no Hi | 1 |
| 昭和の日 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T224119 — 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 Day Context triple: [Emperor’s Birthday, relatedHoliday, Showa Day]
-
A.
National Foundation Day
National Foundation Day is a Japanese public holiday celebrated annually on February 11 to commemorate the legendary founding of the nation and the ascension of its first emperor.
-
B.
V-J Day
V-J Day marks the Allied victory over Japan in World War II and the effective end of the war following Japan’s surrender in August 1945.
-
C.
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.
-
D.
Yabun Festival
Yabun Festival is a major annual Aboriginal and Torres Strait Islander cultural celebration in Sydney that showcases Indigenous music, dance, and community on 26 January.
-
E.
King's Day
King's Day is a nationwide Dutch holiday celebrated each April with street festivals, orange-themed festivities, and open-air markets honoring the birthday of the reigning monarch.
- 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 Day Target entity description: Showa Day is a Japanese national holiday on April 29 that honors the reign and legacy of Emperor Showa (Hirohito) and encourages reflection on Japan’s history during his era.
-
A.
National Foundation Day
National Foundation Day is a Japanese public holiday celebrated annually on February 11 to commemorate the legendary founding of the nation and the ascension of its first emperor.
-
B.
V-J Day
V-J Day marks the Allied victory over Japan in World War II and the effective end of the war following Japan’s surrender in August 1945.
-
C.
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.
-
D.
Yabun Festival
Yabun Festival is a major annual Aboriginal and Torres Strait Islander cultural celebration in Sydney that showcases Indigenous music, dance, and community on 26 January.
-
E.
King's Day
King's Day is a nationwide Dutch holiday celebrated each April with street festivals, orange-themed festivities, and open-air markets honoring the birthday of the reigning monarch.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese national holiday
ⓘ
public holiday ⓘ |
| associatedWithEmperor |
Emperor Hirohito
ⓘ
surface form:
Emperor Showa
Emperor Hirohito ⓘ
surface form:
Hirohito
|
| associatedWithEra | Showa era ⓘ |
| category |
Holidays in Japan
ⓘ
Spring holidays ⓘ |
| commemorates | birthday of Emperor Showa ⓘ |
| country | Japan ⓘ |
| date | April 29 ⓘ |
| dayOfMonth | 29 ⓘ |
| establishedAsCurrentForm | 2007 ⓘ |
| firstObservedAsShowaDay | 2007 ⓘ |
| frequency | annual ⓘ |
| historicalContext | Showa period of Japanese history ⓘ |
| honors |
Emperor Hirohito
ⓘ
surface form:
Emperor Showa
Emperor Hirohito ⓘ
surface form:
Hirohito
|
| languageOfName | Japanese ⓘ |
| legalBasis |
Act on National Holidays and related cabinet orders
ⓘ
surface form:
Act on National Holidays of Japan
|
| month | April ⓘ |
| namedAfter |
Emperor Hirohito
ⓘ
surface form:
Emperor Showa
Showa era ⓘ |
| observanceActivities |
government ceremonies
ⓘ
public discussions and events about history ⓘ visiting museums and historical sites ⓘ |
| observedIn | Japan ⓘ |
| officialNameInJapanese |
Showa Day
self-linksurface differs
ⓘ
surface form:
昭和の日
|
| partOf | Golden Week ⓘ |
| partOfSeries |
Golden Week
ⓘ
surface form:
Japanese Golden Week holidays
|
| predecessorHoliday | Greenery Day ⓘ |
| purpose |
to encourage reflection on Japan’s history during the Showa era
ⓘ
to honor the reign and legacy of Emperor Showa ⓘ |
| reclassifiedFrom | Greenery Day ⓘ |
| relatedHoliday |
Children’s Day
ⓘ
Constitution Memorial Day ⓘ Greenery Day ⓘ |
| romanizedName |
Showa Day
self-linksurface differs
ⓘ
surface form:
Shōwa no Hi
|
| status | current national holiday of Japan ⓘ |
| theme |
consideration of Japan’s postwar reconstruction
ⓘ
reflection on the Showa era ⓘ |
| typeOfObservance | secular holiday ⓘ |
| wasPreviously | Greenery Day ⓘ |
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 Day Description of subject: Showa Day is a Japanese national holiday on April 29 that honors the reign and legacy of Emperor Showa (Hirohito) and encourages reflection on Japan’s history during his era.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
昭和の日
this entity surface form:
Shōwa no Hi
this entity surface form:
Shōwa Day
this entity surface form:
Birthday of Emperor Shōwa