Title: Sagi oegukchŏn yŏkchu
Subjects: Sources, Ethnic relations, History, Ethnology, Han Dynasty (China), Shi ji (Sima, Qian)
Places: China, Central Asia
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.