Title: Zhongguo da yi tong
Subjects: Qin Dynasty (China), Han Dynasty (China), History
Places: China
People: Qin shi huang Emperor of China (259 B.C.-210 B.C), Han Wudi Emperor of China (156 B.C.-87 B.C)
Time periods: Han dynasty, 202 B.C.-220 A.D., Qin dynasty, 221-207 B.C.