The origin of hangul

'Phags-pa script

Ledyard believes that the traditional account of the derivation of the hangul consonants from the shapes of the speech organs, as described in the Hunmin Jeong-eum, is a post hoc explanation, and that the core of hangul derives from the Mongol Phagspa alphabet of the Yuan dynasty, known as the 蒙古篆字 měnggǔ zhuānzì or Mongol seal scriptwiki

GarlicBreath

In July, 1894, Mr Otori made the useful innovation of publishing the Gasette in clear type, and inthe following January it appeared in a mixture of Chinese hieroglyphs and En-mun, the "vulgar script" of Korea, and became intelligible to the common people.

p374 Isabella L. Bird