Ch'oe Yun-ŭi (1102–1162)
Born 1102 CE, died 1162 CE.
Ch'oe Yunŭi (Korean: 최윤의; Hanja: 崔允儀) was a Korean inventor, politician, publisher, and writer during the Goryeo period. Ch'oe Yunŭi compiled the Sangjeong Gogeum Yemun (상정예문; 詳定禮文) with another 16 scholars. They collected all courtesies from ancient to present and published 50 copies. The publication of the Sangjeong Gogeum Yemun was very important for the Goryeo dynasty, because it established the system of official uniforms (that was still evolving at the time, during the 12th century), and thus the vertical rank of officials from king to subjects, specially during rituals. This was done to try to prevent conflicts of authority, and social unrest.
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