Yuen Ren Chao
Yuen Ren Chao (traditional Chinese: 趙元任; simplified Chinese: 赵元任; pinyin: Zhào Yuánrèn; 3 November 1892 – 25 February 1982) was a Chinese-American linguist, musician, and polymath. Applying modern linguistic theory and scientific methods to the study of Chinese phonology, dialects, and grammar, Chao was a leading advocate of the National Language Movement and a principal architect of the Gwoyeu Romatzyh romanization system.