Mr. Gu Jiegang believes that the divinatory words in the Book of Changes recorded the characters and deeds from the Shang Dynasty to the early Western Zhou Dynasty, such as Gao Zongfang and Emperor Yi Guimei, and inferred that the writing age of the divinatory words in the Book of Changes should be in the early Western Zhou Dynasty. These characters and deeds recorded in the divinatory words of the Book of Changes have been confirmed by the literature unearthed in recent years
Most of the characters and deeds recorded in divinatory words are ancient legends
Mr. Gu's presumption is reliable.