丘处机
The journey to Persia and back took three years, from 1220 to 1224. The record was written by a disciple Li Zhichang (李志常), who accompanied Qiu on the journey. The "Travels" consisted of two parts, the first part described the details of the travel to the west and back; the second part contains advice from Qiu Chuji to Genghis Khan.