Hangul supremacy
Hangul supremacy is the belief, most widespread in Korea, that the Hangul alphabet developed by King Sejong the Great's Hall of Worthies in 1443 is the simplest, most logical, most beautiful and most scientific of the world's writing systems. In its extreme form, the belief holds that Hangul is in fact best suited for the expression of sounds in all languages.
Hall of Worthies
The Hall participated in various scholarly endeavors, of which the best-known may be the compilation of the "Hunminjeongeum", in which the hangul writing system was first formulated. In the Hunminjeongeum, King Sejong wrote a preface which explained the origin and purpose of the newly created alphabet, Hangul. He then instructed his scholars of the Jiphyeonjeon (Hall of Worthies) to write detailed explanations of each of its letters along with examples of each of them. The purpose of the Hunminjeongeum was to provide instructions on how to use the new alphabet. The definitive edition of the Hunminjeongeum is known as the Haerye Edition of Hunminjeongeum (Haerye refers to the explanations and examples of the Hall of Worthies scholars, which were previously missing in other known editions)