SONG CHEN/CHINA DAILY China held the Communist Party of China and World Political Parties Summit on Tuesday with the aim of strengthening mutual understanding and learning, so as to promote national and international development for the well-being of the people across the world. The CPC has covered a journey of 100 years, making many remarkable achievements on the way, and earned its rightful place in the global scheme of things. To fully understand the role of the CPC in China's social and political development, one has to evaluate it from a broader historical perspective. In the first half of the 20th century, China experimented with different political and social systems and ideologies. Why did it eventually choose Marxism and the socialist system?