Tomorrow, on October 9, offices shut down, schools close, and citizens across South Korea enjoy a national public holiday called Hangul Day (Hangul-nal / ).
Most national holidays around the world mark military victories, historic battles, declaration of independence, or royal birthdays. South Korea, however, stands as the only country on Earth that gives its people an official paid day off to celebrate its written alphabet.
Even more remarkable is the milestone we reach today: 2026 marks exactly 100 years since Korean scholars first established this holiday back in 1926. But if you could step back in time one century ago, you would find that people were celebrating under a completely different name.
The 1926 Origin Story: When It Was Called "Gagya Day" (가갸날)
To understand how Hangul Day came to be, you have to picture Korea in 1926. The country was living under Japanese colonial rule, and native language and culture were being systematically suppressed. Schools were forced to conduct lessons in Japanese, and public use of the Korean language was heavily restricted.
In the middle of this dark period, a brave group of linguists and scholars from the Joseon Language Society (Joseoneo Yeonguhoe / ) decided to take a stand. They recognized a simple truth: if a nation loses its native language, it loses its soul. Risking police surveillance and arrest, these scholars gathered on November 4, 1926 (the 29th day of the 9th lunar month), which marked the 480th anniversary of the Korean alphabet's proclamation in 1446. They decided to establish a designated annual day of reflection to protect and celebrate their native script.
However, they did not call it "Hangul Day." Instead, they named it Gagya Day (Gagya-nal / ).
Why Gagya Day? At the time, Korean children learned the alphabet by rhythmically chanting basic syllabic tables out loud: ", , , ..." The scholars chose because it was warm, friendly, and instantly recognizable to ordinary families across the nation.
The term "Hangul" (Hangul / ) itself was coined around 1910 by Ju Si-gyeong (Ju Si-gyeong / ), one of Korea's most visionary modern linguists. He combined Han ()—an ancient word meaning "great," "grand," or "one"—with Gul (), meaning "script" or "letter." Together, literally translates to "Great Script" or "Correct Script." As 's term gained popularity across schools and newspapers, the Joseon Language Society officially changed the holiday's name from to in 1928.
World History vs. King Sejong: Breaking the Monopoly on Literacy
To fully grasp why this script deserves its own national holiday, we need to look at how writing worked throughout global history.
For thousands of years, reading and writing were treated as ultimate instruments of power. In medieval Europe, official records and religious texts were written exclusively in Latin, a language understood only by priests and high nobility. In East Asia, government administration, law, and literature were recorded in Classical Chinese (Hanja / ), which required decades of grueling study to master.
Monarchs and aristocrats intentionally kept literacy restricted. If ordinary farmers could not read court laws or tax registers, they could not challenge unfair policies, defend themselves against corruption, or demand basic rights. Illiteracy kept the ruling class in power.
In 1443, King Sejong the Great (Sejong Daewang / ) shattered this pattern.
Sejong looked out at his people and felt genuine sympathy for commoners who suffered unjust legal punishments simply because they could not read the public decree boards posted in their villages. Driven by deep empathy, he made a radical choice: he voluntarily gave up the royal monopoly on knowledge.
Overcoming fierce pushback from his own conservative court officials—who argued that creating a simple alphabet would make Joseon look uncivilized to neighboring empires— spent years designing a brand-new writing system. In 1446, he published , which translates to "The Correct Sounds for the Instruction of the People."
Sejong designed the script with a single goal: total accessibility. In the historical record, it is famously written that the alphabet was designed so logically that "a wise man can learn it before the morning is over, and even a simple man can learn it in ten days."
The Scientific Masterpiece & UNESCO Recognition
Hangul is not just accessible; it is widely considered by global linguists to be one of the most scientifically designed writing systems in existence.
Rather than using arbitrary shapes, Hangul's basic consonant letters physically depict the shape of human vocal organs—the tongue, mouth, teeth, and throat—at the exact moment a sound is produced:
- ㄱ [g/k]: Depicts the root of the tongue blocking the back of the throat.
- ㄴ [n]: Shows the tip of the tongue touching the upper gums.
- ㅁ [m]: Represents the square outline of closed lips.
- ㅅ [s]: Mimics the sharp, pointed shape of a front tooth.
- ㅇ [ng/silent]: Represents the open, circular shape of the throat.
The basic vowels were built around three philosophical elements: a dot (·) representing the round sky, a horizontal line (ㅡ) representing the flat earth, and a vertical line (ㅣ) representing a standing human.
Hangul also holds a unique place in world history. It is the only writing system on Earth where the creator, the exact creation period, and the underlying scientific theories were thoroughly documented in a guidebook: the ("Explanations and Examples of the Correct Sounds for the Instruction of the People").
This human-centered creation earned global recognition. In 1989, UNESCO established the King Sejong Literacy Prize (Yuneseu-ko Sejong-daewang Munhaesang / ). Funded by the South Korean government, this prestigious international award is presented every year on International Literacy Day to organizations or individuals worldwide who make outstanding contributions to fighting illiteracy.
Uncle Hangul's Quick Recap
- 100 Years of Resilience (1926–2026): began as in 1926, founded by brave scholars who risked their safety to keep the Korean language alive under colonial rule.
- Power to the People: While rulers throughout world history used writing to hoard power, created specifically to empower ordinary people with literacy and justice.
- A One-of-a-Kind Holiday: South Korea remains the only country in the world that sets aside an official national public holiday solely to honor its written script and creator.
When you sit down to practice Korean consonants and vowels today, you are doing more than memorizing grammar rules for a trip to Seoul. You are taking part in a 100-year legacy of protecting a writing system built on empathy and respect for everyday people.
Reactions & Next Steps
- Continue Reading: Why Hangul is Written in Square Blocks: From 15th-Century Logic to the Digital Screen — how 's squares still fit modern screens six centuries later.
- Related: Why Typing Korean Feels Like Playing Tetris: The Genius UX Behind Hangul Keyboards — stack consonants and vowels into live syllable tiles on your keyboard.