It should be that during the Jin and Southern and Northern Dynasties, the Central Plains was constantly in war and neglected the management of remote tribes. At that time, remote areas took the opportunity to rise up At that time, it was called the Hu people and the Five Lakes. In fact, there are more than five tribes, and those five tribes are the main ones, occupying the Central Plains, killing and robbing. At that time, it was a scuffle, and the whole Central Plains people were in trouble.