the geometry of speech
King Sejong the Great completes the Hangul writing system, designed so that any person can learn to read and write within days.
The Hunminjeongeum is published, officially introducing the new alphabet to the people of Joseon.
Hangul becomes the official script of the Korean government, replacing Classical Chinese in official documents.
The Hunminjeongeum manuscript is registered as a UNESCO Memory of the World, recognizing Hangul's global significance.
the alphabet is nature, by design