Who wrote the Book of Changes?

The Book of Changes refers to the Book of Changes at present.

The origin of the Book of Changes should be the Eight Diagrams deduced by Fu, which was originally used to predict the weather and other phenomena.

At the end of Shang Dynasty, after Zhou Wenwang was imprisoned by Shang Zhouwang, he interpreted the Eight Diagrams into sixty-four hexagrams. At this point, it is really easy to systematize.

During the Spring and Autumn Period, Confucius annotated the Zhouyi, that is, the Ten Wings, making the Zhouyi truly the most classic work among the classics.

Therefore, the Book of Changes has at least three contributions, one is Fu, the other is Confucius.