Ts’ai Lun, the paper inventor was born in 50 A.D. in Guiyang (modern day Leiyang), China during the Eastern Han Dynasty, and is a person whose might be not a familiar for us. Wondering the importance, then how could this inventor been ignored by the West World was a very surprising matter. Even in the West big logs, it is hard to find any short story about Ts’ai Lun, and his name were absence from any standard history books. After serving as a court eunuch from AD 75, he was given several promotions under the rule of Emperor He of Han.