Party history, history of new China, history of reform and opening up, history of socialist development. Elective courses in universities allow students to have some freedom to choose the courses offered by the school, among which the compulsory courses include the history of Party history, the history of New China, the history of reform and opening up, and the history of socialist development. The history of China mainly includes the congresses of China, the process of party constitution's continuous improvement, and the organizational construction and development of the Party in different periods.