2. Introduction: History, referred to as history for short, generally refers to the history of human society. It is a discipline that records and explains a series of historical events in the process of human activities, and it is also a mapping of the present era in many cases.

3. The problem of history is to discover the real past constantly, to speak with materials, and how people can become a problem that can be discussed in reality. History is an extension. History is the inheritance, accumulation and expansion of culture and the track of human civilization.