Which is earlier?

Eight characters early, eight characters should be the earliest predicted figures, which have been very popular in the Tang Dynasty and can be traced back to the Huangdi Neijing. Therefore, in ancient times, if you want to understand medicine, you must understand the eight characters. Many diseases can be viewed according to the eight characters, and the so-called scholars in ancient times must also understand the eight characters. By counting parents in eight characters, we can better understand the situation of parents. Therefore, eight-character culture has become a deep-rooted way of life in China, which can be seen everywhere in life, such as children's birth names, dates, marriages and even company names, all of which are prefixed with eight characters, affecting all aspects of life.

Wei Zi Dou Shu is a skill developed on the basis of eight characters, which can be traced back to the Song Dynasty. It is said that it was invented by Chen Tuan, a Taoist priest in the Northern Song Dynasty, so it appeared very late.