Zheng said that Lianshan belonged to Xia, Guicang to Shang, and Zhouyi to Zhou — rather too neatly fitting the three titles into the pattern of the three classical dynasties. Lianshan was supposed to have begun with the present Hexagram 52.
Modern research has revealed the Book of Changes to be a royal divination manual of the Zhou state (500100 BC). This new translation synthesizes the results of modern study, presenting the work in its historical context. The first book to render original Chinese rhymes into rhymed English.