Spanning over four centuries , the period of the Han dynasty is considered a golden age in Chinese history .
This interregnum separates the Han into two periods : the Western Han ( 206 BCE -- 9 CE ) and Eastern Han ( 25 -- 220 CE ) .
Spanning over four centuries , the period of the Han   is considered a golden age in Chinese history .
This interregnum separates the Han into two periods : the Western Han ( 206 BCE -- 9 CE ) and Eastern Han ( 25 -- 220 CE ) .