A concise historical analysis framework is actually a framework book, which restores the historical fragments of class change, national integration and cultural convergence. During the Wei, Jin, Southern and Northern Dynasties, ethnic groups merged, and a series of things happened, such as the collision and exchange between western culture and Han culture, and between southern culture and northern culture. This book brings together most of Mr. Chen Yinque's views on the history of Wei, Jin, Southern and Northern Dynasties. For example, the famous articles about Wei and Jin Dynasties in the first two editions of Jin and Ming Dynasties can be seen in books. It's comprehensive and worth seeing.