 Although Huan Tan (43 BCE–28 CE) was a contemporary of Yang Xiong (with whom he interacted), he can be considered the first of the philosophers of the Eastern Han. Like Yang Xiong, Huan was associated with the Xin court of Wang Mang, and was for this reason criticized by a number of later figures, but unlike Yang, Huan’s life and work stretched a few years into the Eastern Han, and Huan’s reputation was salvaged to some extent by his continued service as an official in the second Han Dynasty.