What kind of science does the Book of Changes belong to? Where did it evolve?

The Book of Changes is a book that can solve the mysteries of the universe. When you ask what kind it belongs to, it is actually difficult to answer. Because this book has a wide range of contents, some people say it is a divination book, some people say it is the earliest meteorological work, some people say it is a star-gazing manual, and some people say it is the source of oriental philosophy. All kinds of statements have a basis. Therefore, different people have different views. For example, Qi Jiguang, a general of the Ming Dynasty, learned the art of war from the Book of Changes.

The Book of Changes originated from Taiji Bagua. It is said that Fuxi was painted on the beach to predict the weather and point out the direction. Later, Zhou Wenwang of the Zhou Dynasty folded the single hexagram into the sixty-four hexagrams we see today, and marked the name of the hexagram. In the Spring and Autumn Period, Confucius wrote ten wings for it, and the further explanation became the Book of Changes that we see today. The Qin Dynasty burned books to bury Confucianism. The king of Qin believed that this book was used for divination, not the work of hundreds of thugs, and did not endanger the thoughts of the national legalists, so it has been preserved for two thousand years.

Countless people have studied it in past dynasties. You can have a look at Ceng Shiqiang's Lecture on the Mysteries of the Book of Changes, which is quite good.