The four histories refer to the history of the Party, the history of New China, the history of reform and opening up, and the history of socialist development. The content has its own emphasis, but the whole article is a practical history of seeking happiness for the people, rejuvenation for the nation, harmony for the world and development for the society. * * * The leadership of the production party is the main thread of the "Four History".

Party history is the practical history of leaders' continuous maturity. It is an advanced political party under the leadership of Marx. In the practice of nearly a hundred years, we have constantly summed up the historical experience of self-construction, promoted the construction of the party's politics, ideology, organization, style, discipline and system as a whole, and grown into one of the few mature political parties with strong political leadership in the world.

The history of new China is a practical history of promoting the construction of new China. Since its establishment, it has taken the pursuit of people's happiness and national rejuvenation as its own responsibility, and led the people to realize the great historical leap of the Chinese nation from standing up, getting rich and strengthening.