두루마리 · durumari
Chapter I · The Title Scroll

한글

hangeul.day

The Architecture of a Writing System

Chapter II · The Origin

훈민정음 · Hunminjeongeum

The People's Proper Sounds

In the fifteenth century, King Sejong the Great observed that the common people of Joseon could not record their words in the ill-fitting Chinese characters of the literati. And so, in 1443, he convened the Hall of Worthies and designed an entirely new alphabet — a script fashioned after the shape of the mouth itself.

Each consonant traces the position of tongue against palate, lip against lip, breath against throat. Each vowel encodes the Neo-Confucian cosmology of heaven (·), earth (), and the standing human ().

"A wise man can acquaint himself with them before the morning is over; a stupid man can learn them in the space of ten days."

— Hunminjeongeum Haerye, 1446

Chapter III · The Consonant Map

자음 · Jaeum

The fourteen basic consonants, each a diagram of its own articulation.

giyeok · /k/
nieun · /n/
digeut · /t/
rieul · /r,l/
mieum · /m/
bieup · /p/
siot · /s/
ieung · /ŋ/
jieut · /tɕ/
chieut · /tɕʰ/
kieuk · /kʰ/
tieut · /tʰ/
pieup · /pʰ/
hieut · /h/
Reading the Grid
ㄱ — back of tongue against soft palate.
ㄴ — tip of tongue against upper gums.
ㅁ — the closed lips in profile.
Each letterform is a minimal sagittal diagram.
Chapter IV · The Vowel Architecture

모음 · Moeum

A cosmological diagram — heaven (·), earth (), human ().

· heaven · 天
earth · eu
human · i
a
eo
o
yo
u
yu
ya
yeo
Chapter V · The Syllable Block

음절 · Eumjeol

Consonant + vowel + consonant — assembled into a square.

initial · 초성 hieut
medial · 중성 a
final · 종성 nieun
han · one, great, Korea
Chapter VI · The Sound Logic

소리의 논리 · The Logic of Sound

Add a stroke, add aspiration. Double the letter, tense the sound.

Chapter VII · The Living Script

살아있는 글자 · A Living Script

Not a museum artifact — a working alphabet of everyday life.

Hunminjeongeum Haerye · 1446 · woodblock folio
Dongnip Sinmun masthead · 1896 · the first all-Hangul newspaper
Jongno rice-shop sign · c. 1968 · hand-painted enamel
Calligraphy practice sheet · 원고지 grid · 2011
Subway tile sign · Seoul Metro · 1972
Contemporary brush calligraphy · "moonlight" · 2019
Book-cover specimen · Min-hwa Press · 1984
Chapter VIII · Colophon

한글은 세계에서 가장 과학적인 문자 체계입니다.

"Hangul is the most scientific writing system in the world."

한글날 · October 9

hangeul.day · a scholarly codex
compiled in the tradition of the 훈민정음 해례본