What is the difference between eunuchs and eunuchs? Was Zhao Gao a eunuch or a eunuch in ancient times?

In people's impression, eunuchs and eunuchs are the same thing, but there are differences. According to literature research, we can know that: first, the earliest eunuchs were not all eunuchs; Secondly, the concepts of eunuchs and supervisors in feudal society are different. Ancient eunuchs are the general names of officials serving the emperor and his close relatives in the palace. Before the Eastern Han Dynasty, not all eunuchs were eunuchs. "Learning to use eunuchs" was after the Eastern Han Dynasty. The word eunuch first appeared in Liao Dynasty, which was one of the titles of officials in Liao Dynasty. In Liao Dynasty, there were eunuchs in the prison of Taifu, Shaofu and Secretary. The Yuan Dynasty inherited the Liao system, and all the supervisors also had big supervisors. Not all the third-class officials in Yuan Dynasty eunuch Yao's prison were left behind by punishment.

In the Ming Dynasty, the relationship between prison and eunuch was relatively fixed. The eunuch must be the supervisor, but not all eunuchs are supervisors. Eunuch is the boss of eunuch, with a certain level of senior eunuch, naked. Eunuchs became eunuchs in the Qing Dynasty. Eunuchs and eunuchs were confused because eunuchs who served the emperor and the royal family in the Qing Dynasty were named as big prison countries. Zhao Gao is a eunuch.