Take history as a mirror and make the past serve the present. This is the fundamental purpose of historians to study a basic principle of history.

② Understand the law of historical development and design an ideal blueprint for developing society.

(3) History is a mirror of reality, and the purpose of studying history is more important to reveal the law of social and historical development, foresee the future and design an ideal plan for human development of society.

④ Enhance the sense of participation and participate in social decision-making.

⑤ Carry out patriotism, national unity and moral education.