It is recommended that Xia Shang Dynasty and Western Zhou Dynasty be divided into two parts: Spring and Autumn Period and Warring States Period, which unified Qin and Han Dynasties. Wei Shuwu is divided into three parts, extending to the Jin Dynasty. The Northern and Southern Dynasties coexisted and spread in Sui, Tang and Five Dynasties. After Song, Yuan, Ming and Qing dynasties, the imperial dynasty ended here. Qin is a country name, a vassal state during the Spring and Autumn Period and the Warring States Period. Later, Qin Shihuang unified the six countries, also known as Qin. The Qin Dynasty was a dynasty, only aimed at the history of China. Let me give