Individual itineraries and the circulation of scientific and technical knowledge in East Asia (16th–20th centuries)

Birth in Poyang 鄱陽 (Jiangxi)

Obtained his jinshi degree in Jingtai reign period, xinwei year 景泰辛未.

Appointment to Vice Minister (Shao qing 少卿) of the Court of Imperial Sacrifices (Taichangsi 太常寺), and put in charge as office attendant (jian shi 監事) in Chenghua 10.

Observation of eclipse of the moon led him to see mistake in calendar.

Submission of memorial to the emperor complaining about the calendar submitted by Yu Zhengji 俞正己. The text of the memorial is in the biography of Yu Zhengji in the Ming shi.

Group summoned after completion of work in Chenghua 17.

Meeting with Yu Zhengji took place after the eclipse of 1479=12=29; must also be after compilation of Gai li yi 改曆議

Highest position attained in his career was Libu shangshu 禮部尚書, Minister of Rites.