Over the 500 hundred years of the Spring and Autumn (770-476 BC) and Warring States (475-221 BC) periods, political power changed hands many times. Astrologers, working for many different masters, had great influence, and directed the attention of monarchs and nobles to the observation of the heavens.
春秋戰國五百年間，政權更迭頻繁，星佔家們各事其主，大行其道，引起了王侯對天象觀測的重視。