Is the theory of Yin and Yang ancient Taoism or Confucianism?

The theory of Yin and Yang is a philosophical thought created by ancient people in China, and it belongs to a branch of Taoism. There was worship of Yin and Yang in ancient times, but the theory of Yin and Yang came from the Book of Changes. As the saying goes, "Tai Chi gives birth to two instruments, two instruments give birth to four elephants, and four elephants give birth to gossip."

Astronomical school established in Yuan and Ming Dynasties. In the Yuan Dynasty, it began to be located in various roads, and then it was pushed to various states. The teaching content is astronomy and mathematics. In the Ming Dynasty, local officials studied Yin and Yang, and the government called it the official book, the state called it the standard book, and the county called it the training book. The theory of Yin-Yang and Five Elements is China's simple dialectical materialist philosophy in ancient times.

Therefore, ancient physicians explained various physiological and pathological phenomena of human body with the theory of Yin-Yang and Five Elements, and used it to guide and summarize medical knowledge and clinical experience, and gradually formed China's medical theoretical system based on the theory of Yin-Yang and Five Elements.