The Qin Dynasty was the first feudal dynasty in Chinese history to unify the six kingdoms and establish a huge territory. The Han Dynasty inherited the Qin Dynasty

Compared with the territory of the Great Unification Dynasty, the Song Dynasty was not on the list?

The Qin Dynasty was the first unified feudal dynasty in Chinese history, unifying the six kingdoms and establishing a vast territory. The Han Dynasty inherited the territory of the Qin Dynasty and expanded it further, forming one of the most extensive territories in Chinese history. The Western Jin Dynasty was a unified dynasty after the Three Kingdoms, with a vast territory, but then it was divided due to internal problems, forming the "Five Hu and Sixteen Kingdoms" for more than 100 years. The Sui Dynasty was established on the basis of inheriting the Northern and Southern Dynasties, unified China, and achieved socio-economic prosperity and political stability, laying the foundation for the prosperity of the Tang Dynasty.