It was briefly interrupted by the Xin Dynasty (9–23 CE) of the former regent Wang Mang, an interim that separates the Han into two periods: the Western Han (206 BCE – 9 CE) and the Eastern Han (25–220...It was briefly interrupted by the Xin Dynasty (9–23 CE) of the former regent Wang Mang, an interim that separates the Han into two periods: the Western Han (206 BCE – 9 CE) and the Eastern Han (25–220 CE). Map of the Han dynasty in 100 BC: The Han Dynasty (seen shaded in purple) was an imperial dynasty of China, preceded by the Qin Dynasty (221–207 BCE) and succeeded by the Three Kingdoms (220–280 CE).