Those Figures in History

Qin Shihuang who unified the six kingdoms; Liu Bang who founded the Han Dynasty; Cao Cao, Liu Bei, and Sun Quan who divided the world; the three brothers of Sima who returned to the Jin Dynasty; the heroes of the Five Dynasties and Ten Kingdoms; Zhao Kuangyin of the Song Dynasty who wore a yellow robe; Genghis Han of the Yuan Dynasty who galloped across Eurasia; Zhu Yuanzhang who founded the Ming Dynasty; Nurhaci who opened the Qing Dynasty with thirteen armors. History is alive, sometimes singing and dancing, sometimes fighting with iron horses. Why did the great Qin Dynasty's great foundation fall to the second generation? Liu Bang's start was actually a businessman. Why did Cao Cao not proclaim himself emperor? How did the Sima family replace the Cao family? What was the outcome of the Three Kingdoms? Why were the Five Dynasties and Ten Kingdoms so chaotic? Why was the good emperor of the Song Dynasty taken captive as a slave? What did Qin Hui do? Why did he keep kneeling in Hangzhou? Why did the Yuan Dynasty only last less than 100 years? How did Zhu Yuanzhang become an emperor from a beggar boy? How did Nurhachi invade Beijing from the northeast? How did the last emperor of the Qing Dynasty transform into a commoner? Please go to the book to find the answer.