Constitution Memorial Day

E154497

Japanese national holiday public holiday

Constitution Memorial Day is a Japanese national holiday observed on May 3 to commemorate the promulgation of Japan’s postwar constitution and reflect on democracy and government.

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All labels observed (4)

Label	Occurrences
Constitution Memorial Day canonical	7
憲法記念日	3
Constitution Day (May 3)	1
憲法記念日 (Kenpō Kinenbi)	1

How this entity was disambiguated

This entity first appeared as the object of triple T1334513 — 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: Constitution Memorial Day
Context triple: [Showa Day, relatedHoliday, Constitution Memorial 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. Constitution Day
Constitution Day is Norway’s principal national holiday, celebrated on May 17 to commemorate the signing of its constitution in 1814 with parades, traditional dress, and public festivities.
C. Constitution Day
Constitution Day is Denmark’s annual observance on June 5th commemorating the signing of its democratic constitution and the establishment of constitutional monarchy.
D. Showa Day
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.
E. Hiroshima Peace Memorial Day
Hiroshima Peace Memorial Day is an annual observance in Japan dedicated to remembering the victims of the 1945 atomic bombing of Hiroshima and promoting peace and nuclear disarmament.
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: Constitution Memorial Day
Target entity description: Constitution Memorial Day is a Japanese national holiday observed on May 3 to commemorate the promulgation of Japan’s postwar constitution and reflect on democracy and government.

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. Constitution Day
Constitution Day is Norway’s principal national holiday, celebrated on May 17 to commemorate the signing of its constitution in 1814 with parades, traditional dress, and public festivities.
C. Constitution Day
Constitution Day is Denmark’s annual observance on June 5th commemorating the signing of its democratic constitution and the establishment of constitutional monarchy.
D. Showa Day
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.
E. Hiroshima Peace Memorial Day
Hiroshima Peace Memorial Day is an annual observance in Japan dedicated to remembering the victims of the 1945 atomic bombing of Hiroshima and promoting peace and nuclear disarmament.
F. None of above. chosen

Statements (30)

Predicate	Object
instanceOf	Japanese national holiday ⓘ public holiday ⓘ
alsoKnownAs	Kenpō Kinenbi ⓘ 憲法記念日 ⓘ linked to: Constitution Memorial Day
commemorates	Japan’s postwar constitution ⓘ promulgation of the Constitution of Japan ⓘ
country	Japan ⓘ
dayInMonth	3 ⓘ
follows	Showa Day ⓘ
frequency	annual ⓘ
governmentStatus	national holiday ⓘ
inception	1948 ⓘ
language	Japanese ⓘ
legalBasis	Act on National Holidays of Japan ⓘ linked to: Act on National Holidays and related cabinet orders
month	May ⓘ
observanceType	secular holiday ⓘ
observedBy	citizens of Japan ⓘ
observedOn	May 3 ⓘ
partOf	Golden Week ⓘ
precedes	Greenery Day ⓘ
purpose	to reflect on democracy ⓘ to reflect on government ⓘ
relatedTo	Constitution of Japan ⓘ Showa Constitution promulgation ⓘ
theme	constitutional government ⓘ democracy ⓘ peace ⓘ
typicalActivities	public lectures on democracy ⓘ reading and discussion of the Constitution ⓘ visits to the National Diet Building ⓘ

How these facts were elicited