Title: "Shi ji" zhong de Hebei ren wu yan jiu
Subjects: Biography, History
Places: China, Hebei Sheng (China)
People: Qian Sima (approximately 145 B.C.-approximately 86 B.C)
Time periods: To 221 B.C., Qin dynasty, 221-207 B.C., Han dynasty, 202 B.C.-220 A.D.