Local Cultures and a Chinese Civilization as seen from Rishu

根据我的研究，日书最初是在战国时期作为楚国本土文化的一部分产生的。后来，在秦汉时期，日数成为一种普遍的占卜文化。与此同时，《日书》从汉武帝时期开始解体，并被纳入其他占卜文献中。《礼书》的这一历史特征与战国后期郡县制度的发展有关，即战国时期的官吏将《礼书》作为公务旅行的指南。

Based on my research, Rishu was firstly produced as a part of the local culture in the Chu during the Warring-States period. Later on, Rishu became a universal culture of devination during the Qin and Han dynasties. In a meanwhile, Rishu had dismantled from the period of the Han emperor Wu, and had been incorpolated in other devination texts. This historical character of Rishu was connected with the development of the system of prefectures after the late Warring-States period, i. e., government officials in that age used Rishu as a guide book for official trips.