During the early Zhou Dynasty, the power to compose the documents of official orders lay only in the supreme ruler . This suggests that such documents were very much authoritative in nature, which was fully manifested in the process of their composition, promulgation, reception and enforcement. The fact that the power of composition of official orders was under the control of the supreme ruler of the country means that the supreme ruler was the legally designated author of such documents. Once they were issued and made public, they were of compulsive enforcement nature. The power and the compulsive enforcement nature of these documents were weakened during the Warring-state period when the ruling class fought for power among themselves. This situation came to the end only when the first emperor of Qin Dynasty unified China. It was provided by the law that he, the emperor, was the only person that enjoyed the power to issue orders to the whole nation. Once again, the power to compose and issue official orders was centralized, thus ending the situation of weakened authoritativeness and compulsive enforcement nature of such documents.