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.
Hangul
Ju Si-gyeong, the linguist who had coined the term Hangul to replace "Eonmun" or "Vulgar Script" in 1912, established the Korean Language Research Society (later renamed the Hangul Society), which further reformed orthography with "Standardized System of Hangul" in 1933. The principal change was to make the Korean alphabet as morphophonemically practical given the existing letters. A system for transliterating foreign orthographies was published in 1940.