What does the Yin-Yang family do in the contention of a hundred schools of thought?

The concept of yin and yang was first seen in the Book of Changes, and the concept of five elements was first seen in Shangshu, but the appearance of these two concepts can be traced back to a longer time.

In the Warring States period, Yin and Yang gradually merged with the five elements, forming a new conceptual model, that is, a world view based on the theory of "Yin and Yang news, five elements spread and change". Yin-Yang School is one of the important schools in the Warring States Period, which was named after advocating the theory of Yin-Yang and Five Elements and explaining social personnel. This school originated from the ruling class in charge of astronomical calendars in ancient times, and is also called "Yin-Yang and Five Elements School" or "Yin-Yang and Five Elements School".

Sima Tan's The Essentials of Six Classics lists "Yin and Yang Family" as the first of the six classics.

One of the "Hundred Schools of Thought": Liu Xin recorded more than 100 famous works in Records of Hanshu, Yiwenzhi and Zhuzi, and was listed as one of the "nine schools of thought and ten schools of thought". Later, the Annals of Sui Shu Classics and the Complete Book of Four Kus increased hundred schools of thought's works to thousands. The most famous schools with wide spread and great influence are only Confucianism, Taoism, Yin and Yang, Legalism, famous artists, Mohists, military strategists, farmers, miscellaneous writers and novelists.