nder the yellow sky, within the land of all states, it is also the territory of the Qin.""And the territory of the Qin Dynasty, it would never be borrowed from others.""Perhaps the prince of Liao shou...rround it.”Today's commentary asks a question: is the rise and fall of nations, the change of dynasties, due to natural disasters or human actions If it is due to human actions, how can we clarify thi...