The Book of Changes was roughly formed in the Yin and Zhou Dynasties. It is said that Fu looked up at the astronomical phenomena, looked down at geography, and took things that were close to the body and far away, leading to gossip; Later, Zhou Wenwang changed the hexagrams and interpreted them into sixty-four hexagrams. According to archaeological findings, the Oracle bones of Zhangjiapo and Jiabu in Joo Won? and the Oracle bones of Sipan Mill are engraved with six-character symbols. Archaeologists have proved that this digital symbol is an early hexagram composed of numbers, consisting of three single hexagrams and six double hexagrams. There is also a saying in "Han Shu Li Zhi" that "painting gossip starts from a few days".