On October 9, South Koreans celebrate Hangeul Day to commemorate the invention and promulgation of Hangeul, the Korean writing system, by King Sejong. Korea is known to be the only country in the world that has a holiday for its writing system.
“Indeed, legendary University of Chicago linguist James McCawley was famous for holding Hangul Day celebrations every year and for championing the holiday as an international celebration for linguists. In an interview shortly before his death in 1999, McCawely noted that “Hangul is the most ingeniously devised writing system that exists, and it occupies a special place in the typology of writing systems.” He adds that it is “the only writing system in the world that divides sentences not only into words and syllables and individual sounds, but also articulatory features, and the achievement of its creators in the 1440s was really amazing. They were doing work that would qualify as excellent linguistics by the standards of 5oo years later.””