The term "Daojia" (usually translated as "philosophical Taoism") was coined during the Han dynasty. In Sima Qian's history (chapter 63) it refers to immortals; in Liu Xiang it refers to Laozi and Zhuangzi ("Daojiao" came to be applied to the religious movements in later times). The earliest commentary on the "Dao De Jing" is that of Heshang Gong (the "Riverside Master"), a legendary figure depicted as a teacher to the Han emperor. In the early Han Dynasty, the Tao came to be associated with or conflated with the Xian Di Emperor. A major text from the Huang-Lao movement would be the "Huainanzi", which interprets earlier works of the Taoist canon in light of the quest for immortality.