It is often said that history is a long river that flows endlessly. The water of time passes through it, washes away the frivolous dregs, and precipitates the essence of shining; some people say that history is a weather-beaten ancient clock, the percussion of time It has already been melodious, but there are always a few loud noises that linger around the ancient clock and stop at the bottom of people's hearts. Some people say that history is a mirror. "With history as a mirror, you can know how to replace it." Mirror, Jian also, the meaning of the mirror is to make people learn from, to better regulate their behavior, "choose the good and from the bad, change it"; also through the dynasties from ancient times to the present The rise and fall of the rise and fall, the glimpse of the historical inevitability of certain behaviors, thus avoiding the possible overturning. It is a study of the ancient singers who have spent a lot of time and even risking being killed. The relationship between the monarch and the minister is from the loyalty to the glory. I also read the personal biography of the famous works that have been circulating for thousands of years, from personal life to national affairs, from everyday interpersonal to international relations, through a personal era to describe a more grand background. Reading thousands of books is often associated with Wanli Road. We can learn about history through books. We can also explore the traces of history by visiting ancient buildings that are still preserved. The historical living fossils left in modern society are predecessors. There is already the most irrefutable evidence.