Cai Yong (133–192)
Born 133 CE, died 192 CE.
Cai Yong (132/133 – c. June 192), courtesy name Bojie, was a Chinese astronomer, calligrapher, historian, mathematician, musician, politician, and writer of the Eastern Han dynasty. He was well-versed in calligraphy, music, mathematics and astronomy. One of his daughters, Cai Yan / Cai Wenji, was also a famous poet and musician.
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