Title: Zi zhi tong jian
Subjects: History, Minorities, Politics and government, Eunuchs, Political activity, Finance, Banks and banking, Money
Places: China, +China
People: Guang Sima (1019-1086)
Time periods: 221 B.C.-960 A.D., Warring States, 403-221 B.C., To 1643, To 1500