Always spread advanced culture through experience. History is created, which reflects the precious experience of our ancestors in life and is the spiritual wealth of our future generations. We should explore its laws. The impact on today's society can make people learn advanced culture and technology from past events, and let people know that the survival of the fittest, backwardness will be beaten. It can be said that it is a driving force for today's development, so don't repeat the same mistakes. Studying history is the need of developing social science theory.