The first stage: Westernization Movement and the Reform Movement of 1898. Understand western civilization and capital economy. Westernization, Li Hongzhang, Yi? . The slogan of strengthening the country and seeking wealth.

The second stage: the May 4th Movement and the Revolution of 1911. Learn the western civilization system, revolutionaries, and represent Sun Yat-sen's slogan of the Three People's Principles.

The third stage: after the founding of the people's Republic of China, three major transformations. Working class, complete the transformation of the primary stage of socialism. The representative is the leader of People's Republic of China (PRC) after its founding.