This book employs a puzzle-solving-style narrative and draws on authoritative historical records as its source to detail the history spanning over 160 years of history of the Tang Dynasty (618–907 CE)—from the collapse of the Sui Empire, the transition from Sui to Tang, the Xuanwu Gate Incident, the Zhenguan Reign of Prosperity, Wu Zetian’s usurpation of the Tang throne, the Kaiyuan Golden Age, to the end of the An Lushan Rebellion. All the renowned historical events happened in the majestic Tang Dynasty are elaborated in this book, which also provides an in-depth analysis of the underlying logic, worldly wisdom, and political ecology that key historical figures relied upon when making decisions.