Observance guideSource-backed

Hangul Proclamation Day2026 · Date · History · Messages

Republic of Korea Ministry of Personnel Management; Act on National Holidays

Annual dateReviewed 2026-09-05

About Hangul Proclamation Day

Hangeul Day, represented in the portable corpus as Hangul Proclamation Day, is observed in the Republic of Korea on 9 October.

The observance began in 1926 as Gagya Day, organized by the Korean Language Research Society, and was renamed Hangeul Day in 1928.

Why Hangul Proclamation Day matters

The day commemorates Hangeul and the publication tradition associated with Hunminjeongeum.

The modern October 9 date derives from dating evidence in the Hunminjeongeum Haerye, and the day is now a Korean national day and public holiday.

History of Hangul Proclamation Day

On 4 November 1926, the Korean Language Research Society held the first Gagya Day celebration, using the lunar ninth month’s 29th day converted to the solar calendar.

The name changed to Hangeul Day in 1928; the date later moved through October 29 and October 28 before being fixed at October 9.

The National Hangeul Museum records later status changes: public-holiday recognition after liberation, removal from the public-holiday calendar in 1990, elevation to a national day in 2005, and restoration as a public holiday from 2013.

Institutional timeline

How the observance developed

This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.

  1. Origin / proposal

    Korean Language Research Society (조선어연구회)

    The National Hangeul Museum says the society declared and celebrated the first Gagya Day in 1926.

  2. Establishment

    Korean Language Research Society (조선어연구회)

    The institutional history attributes the original observance to the society.

  3. First observance

    First documented observance

    The National Hangeul Museum identifies 4 November 1926 as the first Gagya Day celebration.

  4. Renaming

    The observance’s name changed from Gagya Day to Hangeul Day.

    Korean Language Research Society · Recorded organizational naming change

  5. Date Change

    Post-liberation observance used October 9, the date that remains current.

    Korean-language commemoration organizers · Date standardization documented by the National Hangeul Museum

  6. Recognition

    Hangeul Day was elevated to national-day status, effective from 2006.

    Republic of Korea · Amendment to the Act on National Holidays

  7. Recognition

    Hangeul Day was restored as a public holiday beginning in 2013.

    Republic of Korea · Public-holiday regulation change

  8. Current stewardship

    Republic of Korea Government and national cultural institutions

    Current government public-holiday systems and the National Hangeul Museum maintain official observance and educational information.

Origins & establishment

What the evidence establishes

Evidence & sources ↓

Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.

Originator / proposerKorean Language Research Society (조선어연구회)The National Hangeul Museum says the society declared and celebrated the first Gagya Day in 1926.
Proclaiming / establishing bodyKorean Language Research Society (조선어연구회)The institutional history attributes the original observance to the society.
Current facilitator / coordinatorRepublic of Korea Government and national cultural institutionsCurrent government public-holiday systems and the National Hangeul Museum maintain official observance and educational information.
First observance4 November 1926The National Hangeul Museum identifies 4 November 1926 as the first Gagya Day celebration.
Former nameGagya Day (가갸날)The original observance was called Gagya Day and was renamed Hangeul Day in 1928.
Former date4 November 1926; later 29 October and 28 October before the current 9 October dateThe museum chronology documents the original lunar-date conversion and later solar-calendar adjustments before October 9 became the enduring date.
Why this exact date?October 9 reflects the dating of the Hunminjeongeum Haerye publication record to the first ten days of the ninth lunar month in 1446, using the tenth day as the commemorative reference.National Hangeul Museum explains how the Haerye dating evidence led to October 9.
2 fields not established in reviewed sources
Original establishing instrument / decisionThe reviewed museum chronology does not identify a surviving formal instrument that established the 1926 observance.
Original instrument adoption / decision dateNo exact adoption date for a founding instrument is established.

Later institutional actions

Later recognition, renaming, mergers or date changes are kept separate from original establishment.

RenamingThe observance’s name changed from Gagya Day to Hangeul Day.Korean Language Research Society · Recorded organizational naming change · 12 November 1928National Hangeul Museum chronology records the 1928 name change.
Date ChangePost-liberation observance used October 9, the date that remains current.Korean-language commemoration organizers · Date standardization documented by the National Hangeul Museum · 1945The museum chronology says ceremonies were held on October 9 from 1945 after earlier date adjustments.
RecognitionHangeul Day was elevated to national-day status, effective from 2006.Republic of Korea · Amendment to the Act on National Holidays · December 2005The National Hangeul Museum chronology records the 2005 legal elevation.
RecognitionHangeul Day was restored as a public holiday beginning in 2013.Republic of Korea · Public-holiday regulation change · November 2012The National Hangeul Museum chronology records the 2012 restoration decision and 2013 application.
Source qualityHigh confidence
3 Primary institutional / legal
View all sources ↓
Names

Also known as

South Korea Hangul Day

How to Observe Hangul Proclamation Day

01

Learn about the design principles and history of Hangeul.

02

Visit or use educational resources from the National Hangeul Museum and other Korean cultural institutions.

03

Read about Hunminjeongeum and how the October 9 date was determined.

04

Practice Korean writing or explore Korean-language literature and culture.

Hangul Proclamation Day Facts

Fact 01

The first Gagya Day celebration took place on 4 November 1926.

Fact 02

The observance was renamed Hangeul Day in 1928.

Fact 03

October 9 became the enduring date after publication evidence in the Hunminjeongeum Haerye was considered.

Fact 04

Hangeul Day became a national day through a 2005 legal change.

Fact 05

Public-holiday status was restored from 2013 after a 2012 decision.

Hangul Proclamation Day Messages

Wishing everyone a meaningful Hangeul Day and an opportunity to appreciate the history of the Korean script.

May Hangeul Day inspire curiosity about language, literacy and Korean cultural history.

Celebrating the creativity and enduring cultural importance of Hangeul.

May October 9 be a day for learning about the history and use of Hangeul.

Classification

Topic and context

Celebrations & Social →
Accuracy notes

What this page does not assume

  • Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
  • Do not treat the title alone as proof of government recognition or public-holiday status.
  • Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Evidence

Evidence & sources

Source policy →

Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.

Questions & connections

Understand it, compare it, then explore further

Start with the most common factual questions, then compare closely related observances and explore useful connections.

Reader questions

Frequently asked questions

When is Hangul Proclamation Day?

9 October The documented recurrence rule is: 9 October.

Does Hangul Proclamation Day fall on the same date every year?

Yes. It uses a fixed annual date unless stronger evidence changes the pattern.

Is Hangul Proclamation Day an official public holiday?

The reviewed sources verify it within this scope: Republic of Korea national holiday. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.

Who established or recognizes Hangul Proclamation Day?

The reviewed sources identify Korean Language Research Society (조선어연구회) as the proclaiming or establishing body. Current facilitation or coordination is recorded as Republic of Korea Government and national cultural institutions.

Is Hangul Proclamation Day international or country-specific?

No single country is assigned to this observance. Its documented scope is: Republic of Korea national holiday. Use that scope rather than assuming worldwide or country-specific status.

How is this page verified?

The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-05.

When is Hangeul Day?

It is observed on 9 October in the Republic of Korea.

What was Hangeul Day originally called?

The first 1926 observance was called Gagya Day; the name changed to Hangeul Day in 1928.

Why is Hangeul Day on October 9?

National Hangeul Museum material explains that dating evidence in the Hunminjeongeum Haerye led to October 9 becoming the commemorative date.

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