In the pre-Qin period, Zhouyi was first discovered by Confucius and listed as one of the six classics.
In the Han dynasty, with the improvement of Confucianism, Zhouyi, as a Confucian classic, was regarded as the first of the six classics;
During the Wei and Jin Dynasties, Zhouyi was designated as the first of the Thirteen Classics, thus becoming the leading position in China Confucian classics.
During the Tang Dynasty, Buddhist scriptures flooded into China, and Confucian classics, represented by Zhouyi, rose up to defend the dominant position of China traditional culture.
During the Song and Yuan Dynasties, Zhouyi was regarded as a classic of Neo-Confucianism.
During the Ming and Qing Dynasties, the position of Zhouyi was more important, and Sikuquanshu listed Zhouyi as the first of all classics.
Zhouyi is the general source of China culture and the backbone of China traditional culture.
China culture began with the Yi people. Zhouyi is a comprehensive masterpiece of China's philosophy, natural science and social science. It is the crystallization of China people's wisdom and the ancestor of China culture.
"Yi" is the ancestor of Confucianism: Confucianism originates from "Yi", Confucianism takes "Yi" as its virtue standard, and all Confucianism is committed to "Yi". The Book of Changes is said to have been written by Confucius.
The Book of Changes is a sect of Taoism: Taoist classics are annotations of the Book of Changes. Laozi's famous saying "Tao gives birth to one, two, three and everything" was born out of the Book of Changes.
Yi is the foundation of Mohism: the rise and fall of Mohism is the core idea of the inevitable law of the development of all things in the universe, which is in the same strain as the change of Yi;
Yijing is the source of TCM: Yijing has a far-reaching influence on Huangdi Neijing, a classic work of TCM, especially on the formation and development of TCM theory. Yi Zhuan was written from the Spring and Autumn Period to the Warring States Period, and Huangdi Neijing was written from the Warring States Period to the Han Dynasty. Huangdi Neijing, because of its short time, fully absorbed the essence of Zhouyi (including the Yin-Yang family and the Five Elements family in the Warring States period) and creatively combined it with medicine, making Chinese medicine a natural science with a high philosophical level and making great contributions to the health of the Chinese nation for thousands of years.