When was the theoretical system of China's modernization initially constructed?

Since the 18th National Congress of the Communist Party of China, the theoretical system of China's modernization has been initially constructed.

According to the data of Party Construction Network and Guangming.com, since the 18th National Congress of the Communist Party of China, the Party has further deepened its understanding of the connotation and essence of Chinese modernization, summed up the China characteristics, essential requirements and major principles of Chinese modernization, and initially constructed a theoretical system of Chinese modernization. This theoretical system is the ideological and theoretical crystallization of China producers' insistence on combining the basic principles of Marxism with China's concrete reality and Chinese excellent traditional culture.