How Have Korean Vowels Changed Through Time

This paper was presented under the title "How has the Korean vowel system changed through time?" at the 11 th International Conference on Korean Linguistics (Honolulu, July 1998). There are three parts: (1) on Korean vowel harmony; (2) on the hypothesis that the values of the modem vowel system is the result of rotation, a shift of articulatory values; (3) on the connotative associations of the vocalic features, the etymological implications of vowel sets, and the canonical patterns found in the nouns and the verb stems.