qiè​yùn​zhǐ​zhǎng​tú

Qieyun Zhizhang Tu

切韵指掌图 切韻指掌圖 qiè​yùn​zhǐ​zhǎng​tú
Qieyun Zhizhang Tu
An important 12th-century rhyme table traditionally attributed to the Song Dynasty scholar 司马光 sī​mǎ​guāng (Sima Guang), used for studying historical Chinese phonology; it organizes the sounds of Chinese into twenty charts based on the thirty-six initials.