Title: Chun qiu Zhan guo ji Qin Han zhi shi ke wen hua
Subjects: History, Lobbyists
Places: China
Time periods: Spring and Autumn period, 722-481 B.C., Warring States, 403-221 B.C., Qin dynasty, 221-207 B.C., Han dynasty, 202 B.C.-220 A.D.