This book is China's first true general history work, and it is written in vernacular, so it became famous in the early years of the Republic of China. The famous historian Mr. Gu Jiegang said that this book "opened a new era for the writing of general history." The content in the book starts from ancient myths and ends in the 11th year of the Republic of China (1922). It is divided into five stages: ancient times, medieval times, modern times, modern times, and modern times, spanning more than 5,000 years. It also describes in detail all aspects of social life such as politics, economy, culture, ethnicity, religion, etc. In each period. It can be said that it is vertically and horizontally and meticulously woven, showing a colorful historical picture. This book not only has detailed research and rigorous style, but the author also has the courage to break past mainstream views and express his own opinions from time to time. I believe it will be thought-provoking after reading it.