The Tang dynasty, or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD.
Historians generally regard the Tang as a high point in Chinese civilization, and a golden age of cosmopolitan culture.
From the outset, religion played a role in Tang politics. In his bid for power, Li Yuan had attracted a following by claiming descent from the Taoism sage Lao Tzu.
People bidding for office would request the prayers of .