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.
Gari Ledyard
Although several of the basic concepts of hangul came from Indic phonology through the Phagspa script, such as the relationships among the homorganic consonants and, of course, the alphabetic principle itself, Chinese phonology also played a major role. Besides the grouping of letters into syllables, along the lines of Chinese characters, it was Chinese phonology, not Indic, that determined which five consonants were basic, and therefore to be retained from Phagspa. These were the tenuis (non-voiced, non-aspirated) plosives, "g" for ㄱ , "d" for ㄷ , and "b" for ㅂ , which were basic to Chinese theory, but which were voiced in the Indic languages and not considered basic; as well as the sibilant "s" for ㅈ and the liquid "l" for ㄹ . (Korean ㅈ was pronounced in the 15th century.)