Liu Ji (July 1, 1311 — 16 May 1375), Bowen and posthumous name Wencheng (文成), was a military strategist, officer, statesman and poet of the late Yuan and early Ming Dynasty period of Chinese history. He was born in Qingtian County (present-day Wencheng County, Zhejiang). He was the main advisor to the Yuan Dynasty era rebel leader Zhu Yuanzhang (1328–1398), who later became the founding emperor of the Ming Dynasty. (r. 1368-1398). Liu Ji is also known for his prophecies, as he has been described as the "Chinese Nostradamus". With his contemporary general and scholar Jiao Yu, he was one of the co-editors of the military treatise known as the Huolongjing (the Fire Dragon Manual). His most famous military treatise is known as the Lessons of War.