Hangeul Day: Why Korea Has a Holiday for Its Alphabet
Published: September 25, 2026 · Updated: October 31, 2026
Hangeul Day is Korea’s holiday for its alphabet. Every October 9, the country celebrates the creation and proclamation of Hangeul, the script King Sejong introduced in 1446. The holiday started in 1926, so 2026 was its 100th year. Here’s why the date is October 9, how the letters were designed, and what you can still see in Seoul this fall.
Quick Vocab
A few Korean words come up in this post — here’s how to say them.
- Korea’s own script – han geul
- Hangeul Day – han geul lal
- Gagya Day, the holiday’s first name – ga gya nal
- The Proper Sounds for the Instruction of the People – hun min jeong eum
- Commentaries – hae rye
- Chinese characters – han ja
- Korean braille – hun maeng jeong eum
1. What Hangeul Day Celebrates
Hangeul is the alphabet Koreans use every day. The letters you see on menus, subway signs and phone screens all go back to a single king and a single book.
King Sejong, the fourth king of the Joseon Dynasty, finished creating the new letters in 1443. Three years later, in 1446, he introduced them to the public in a book called Hunminjeongeum, which means “The Proper Sounds for the Instruction of the People.”
Hangeul Day honors both moments: the creation of the letters and their proclamation. That makes it different from most holidays. It doesn’t celebrate a battle, a founding or a person’s birthday. It celebrates a writing system.
Why October 9?
Nobody recorded an exact day. The book’s closing note only says it was finished in the first ten days of the ninth month of 1446, on the old lunar calendar.
So Korea took the last of those ten days, the 10th, and converted it to the modern calendar. The result was October 9. The National Institute of Korean Language admits it is still not an exact date, but it is the closest one the record allows.
💡 Tip: You’ll see the name spelled “Hangeul,” “Hangul” and even “han-gul” in English. They all mean the same alphabet, so don’t let the spelling confuse you when you search for events or museums.
2. From Gagya Day to a Public Holiday Again
Hangeul Day didn’t start as a government holiday. In 1926, a Korean language research group, the forerunner of today’s Korean Language Society, held the first celebration together with Sinminsa. It marked 480 years since the alphabet was proclaimed.
They called it Gagyanal, or Gagya Day. The name came from the way people practiced the letters back then, reciting “ga gya geo gyeo” out loud. Within a couple of years it was renamed Hangeul Day.
The date moved around before it settled. The celebration was held in late October through the 1930s and early 1940s, and it has been on October 9 since 1946.
Dropped in 1991, back in 2013
Here’s a twist many visitors don’t know: Hangeul Day once stopped being a day off. In 1990, the government decided Korea had too many public holidays and that they were hurting economic growth.
From 1991, Hangeul Day stayed on the calendar as a commemoration day, but people went to work. Armed Forces Day lost its day off at the same time.
A law passed at the end of 2005 made Hangeul Day one of Korea’s five national days, but that title alone didn’t mean a day off. That finally came in 2013, when Hangeul Day became a public holiday again after 23 years.
| Year | What happened |
|---|---|
| 1443 | King Sejong finishes creating the letters |
| 1446 | The letters are proclaimed in Hunminjeongeum |
| 1926 | First Gagya Day, 480 years after the proclamation |
| 1946 | Celebrated on October 9 from this year on |
| 1991 | No longer a day off |
| 2005 | Law makes it a national day |
| 2013 | A public holiday again |
| 2026 | The holiday’s 100th year; 580 years since the proclamation |
A short Hangeul Day timeline.
⚠️ Heads-up: Not every worker gets Hangeul Day off. Since 2022, private businesses with five or more employees must give public holidays as paid days off, but businesses with fewer than five employees are not covered (as of October 2026). So some small shops and restaurants may be open as usual.
3. Why King Sejong Created Hangeul
Before Hangeul, Koreans wrote with Chinese characters, called hanja. People from the lower classes rarely had the chance to learn them.
Sejong explained his reason in the first line of his preface: the Korean language is different from Chinese, so Chinese characters couldn’t express it well. Ordinary people had things they wanted to say but no way to write them down.
So he made a script for them. The royal records for the 12th lunar month of 1443 put it plainly: “This month the King created the twenty eight letters of the written language of Joseon.”
Three years later came the book. Its full edition, called the Haerye Edition, adds commentaries by scholars of the Hall of Worthies, the royal research institute. They explain how each letter works and give examples.
Sejong’s goal still echoes today. UNESCO’s literacy award, created in 1989 with Korean government support, is called the King Sejong Literacy Prize.
4. How the Letters Were Designed
This is the part that surprises most people. Hangeul’s design logic was written down when the letters were introduced, so we know how they were built.
The original set had 28 letters, built from five basic consonants and three basic vowels. The five basic consonants copy the shape of the speech organs that make each sound.
| Letter name | Type of sound | Shape it imitates |
|---|---|---|
| giyeok | Molar sound | The root of the tongue blocking the throat |
| nieun | Tongue sound | The tongue touching the upper gum |
| mieum | Lip sound | The shape of the mouth |
| siot | Tooth sound | The shape of the teeth |
| ieung | Throat sound | The shape of the throat |
The five basic consonants and the shapes they are based on.
Then came a clever trick. To show a stronger sound, a stroke was added to a basic letter. That gave nine more consonants from the same five shapes.
The vowels started from three ideas: a dot for the sky, a flat line for the earth, and a standing line for a person. Sky, earth and human became the building blocks for the other vowels.
Letters are then grouped into blocks, one block per syllable. That’s why written Korean looks like neat little squares instead of a long line of letters.
A few of the original 28 letters fell out of use over time. Today’s Korean alphabet has 24 basic letters: 14 consonants and 10 vowels.
Where the original book is today
The Haerye Edition was found in 1940 in an old house in Andong. It came into the collection of Jeon Hyeong-pil, and today it is kept by the Kansong Art Museum in Seoul.
It became a National Treasure in 1962 and was added to UNESCO’s Memory of the World Register in 1997. A second copy surfaced in Sangju in 2008, but its holder hid it again, and it was still missing as of 2024.
5. Hangeul Day 2026 and What You Can Still See in Seoul
2026 was a big year. It marked 580 years since the proclamation and 100 years since the first Gagya Day. Korean braille also turns 100 this year, so the National Hangeul Museum named 2026 the “Year of Hangeul.”
Hangeul Week was planned for October 6 to 17, with the Hangeul Hanmadang festival at Gwanghwamun Square from October 6 to 8. Musicals, poetry readings, songs and storytelling were on the program. Hangeul Day itself fell on a Friday, which gave many workers a three-day weekend.
Missed the festival? You can still see a lot of Hangeul history in Seoul right now.
Sejong Story under Gwanghwamun Square
The statue of King Sejong has stood at Gwanghwamun Square since October 9, 2009. Right underneath it is a free exhibition hall, now called Sejong and Chungmugong Story. Chungmugong is the honorary title of Admiral Yi Sun-sin, the other hero the hall covers.
The King Sejong side has six zones, including one on how Hangeul was created. Look for dioramas of the creation of Hunminjeongeum, early books printed in the script, and Hangeul-themed media art.
| Visitor info | As of October 30, 2026 |
|---|---|
| Location | Underground, beneath Gwanghwamun Square |
| Hours | 10:00 to 18:30 (last entry 18:00) |
| Extended hours | Through November 30: until 21:00 on Tue, Wed, Fri, Sat and Sun (last entry 20:30) |
| Closed | Mondays (open on a Monday public holiday, closed the next day) |
| Admission | Free |
From the Sejong Center for the Performing Arts, which runs the hall.
💡 Tip: There’s a hands-on corner where you can try writing your name in Hangeul with a brush or make a bokjumeoni, a traditional lucky pouch. It makes a nice free souvenir.
The National Hangeul Museum is closed for now
If the National Hangeul Museum in Yongsan was on your list, change your plans. It closed in late 2024 for an expansion, and a fire during construction on February 1, 2025 extended the closure.
As of October 2026, the museum says it will stay closed until the second half of 2028. In the meantime, it runs exhibitions at other venues.
Two are open right now. A Hangeul Day centennial exhibition runs through February 9, 2027 at the National Museum of Korean Contemporary History in Seoul, and a Korean braille exhibition runs through February 14, 2027 at the National Museum of World Writing Systems in Incheon.
Korean braille turns 100 on November 4
Hangeul has a braille version too. Educator Park Du-seong spent seven years developing it and proclaimed it on November 4, 1926. He named it Hunmaengjeongeum, “the proper sounds for the instruction of the blind,” echoing Sejong’s book.
November 4 is now Braille Day in Korea, and this year it marks exactly 100 years.
Key Takeaways
- Hangeul Day (October 9) celebrates the creation and proclamation of Korea’s alphabet by King Sejong.
- October 9 is the closest date the 1446 record allows, not an exact one.
- The holiday began as Gagya Day in 1926, lost its day off in 1991, and became a public holiday again in 2013.
- The National Hangeul Museum is closed until the second half of 2028, but Sejong Story under Gwanghwamun Square is open and free.
If you’re in Seoul this fall and only have an hour, head to Sejong Story under Gwanghwamun Square, then walk up to Gyeongbokgung Palace right behind it.
Frequently Asked Questions (FAQ)
Is Hangeul Day a day off in Korea?
Yes, it has been a public holiday again since 2013. Businesses with five or more employees must give it as a paid day off, but very small businesses are not required to.
Why is Hangeul Day on October 9?
The 1446 book only says it was finished in the first ten days of the ninth lunar month. The last of those days, converted to today’s calendar, is October 9.
Where is the original Hunminjeongeum?
The Haerye Edition found in 1940 is kept by the Kansong Art Museum in Seoul. It is a National Treasure and part of UNESCO’s Memory of the World Register.
Is the National Hangeul Museum open?
No. As of October 2026, it is closed until the second half of 2028 after a 2025 fire during expansion work. Its exhibitions continue at other museums in the meantime.
My Take
Even as a native speaker, I find Korean easy to read but tricky to write, and I still make spelling mistakes. What I love is how much the language can hold. Some words, like jeong, just don’t translate.
Once at Namsan, a stranger saw that my friend’s baby looked cold, and she gave the child socks and a hat. My friend asked, “How much?” She just smiled and walked away. That’s jeong.
Disclaimer: This article is for general informational purposes only. Customs in Korea differ by region, generation, and family, and laws and official rules can change. Check the official sources linked below before you rely on a detail.
How this article was made: We researched official and reputable public sources, drafted this article with the help of AI tools, and had it reviewed by the author before publishing.
Sources
- UNESCO, Hunminjeongum Manuscript (Memory of the World)
- National Hangeul Museum, Hunminjeongeum (English education page)
- National Archives of Korea, National Days of Korea (in Korean)
- Korea.net, Wealth of events from Oct. 6-17 to mark centennial Hangeul Day
- Sejong Center for the Performing Arts, Sejong Story visitor information (in Korean)
- Ministry of Employment and Labor, Paid public holidays for private businesses (in Korean)
Suggested Reading
- What Is “Jeong”? The Korean Concept Explained – The word behind the Namsan story in this post, and why it’s so hard to translate.
- Seoul’s Five Palaces Compared: Which One Should You Visit First? – Gyeongbokgung sits right behind the King Sejong statue. Here’s how it compares with Seoul’s other palaces.
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