Discuss the characteristics of ancient territory.

Generally speaking, the territory has several characteristics: 1, which is mostly formed by the expansion of force; 2. Multi-ethnic, a core ethnic group composed of conquerors enslaving other ethnic groups; 3. The territory is rough and changes greatly with the growth and decline of strength; 4. The domestic economic ties are limited, so it is unstable; 5. A high degree of absolute monarchy and centralization, once weakened, will fall apart. Comparatively speaking, China, which has a long history and continues to this day, is basically intact.