Emperor Guangwu of Han, personal name Liu Xiu (劉秀), courtesy name Wenshu (文叔), was the founding emperor of the Chinese Eastern Han dynasty. Through the Eastern Han's suppression and conquest of regional warlords, the dynasty's rule over the whole of China proper was consolidated by the time of Emperor Guangwu's death in AD 57. During his reign, Taoism was made the official religion of the Eastern Han, and the Chinese folk religion began to decline.