The Han Dynasty was a dynasty in Chinese history that emerged after the brief Qin Dynasty, divided into two historical periods: the Western Han (202 BC–8 AD) and the Eastern Han (25–220 AD), also referred to by later historians as the Two Hans. The period of the Two Hans was a remarkable era in world history, spanning from the reign of Emperor Gaozu of Han to the Han Wendi and Han Jingdi periods ..