Hangul
The world's only featural script in daily use — and the best-documented act of script design in history.
Curatorial note
Most scripts evolved; Hangul was designed. It arrived with a stated brief — a system any Korean could learn quickly — and with published documentation: the Hunminjeongeum and its scholarly commentary explain the rationale letter by letter, making Hangul the rare script whose design intent survives in the designers' own words.
The shape of each basic consonant diagrams the speech organ that produces it. Hangul is not a picture of the world; it is a picture of the mouth.
Letters stack into syllable blocks, so the system reads at the speed of a syllabary while remaining learnable as an alphabet of 24 signs. Korea's near-universal literacy is, in part, a design outcome — the founding argument of this institute. Full treatment in WI·INV·01, The King's Alphabet.
The featural principle
Five basic consonantsSpecimen — Noto Sans KR
Waterfall on baseline gridIn the building
In the Reading Room
The King's Alphabet
Sejong the Great · Korea, 1443–1446. The brief, the constraints, the decisions, the five-century adoption curve, and the verdict.
Plaque sources: The Unicode Standard (Hangul, Hangul Jamo blocks) · ISO 15924 · Hunminjeongeum Haerye (1446) · G. Ledyard, The Korean Language Reform of 1446 · ScriptSource (SIL). User figures are estimates. Compiled 2026-07.