The meanings evolved from then on but the book was used mostly for predicting natural events until King Wen wrote the first expositions on the sixty-four hexagrams about 3000 years ago.

• 这种工具从那时起就发展起来，但是此书大多都是用于预知自然事件，直到周文王在3000年前首次把六十四卦的内容写下来。