Geography sometimes indirectly affects the historical trend to a certain extent. One of the reasons for the conflict between ancient farming civilization and nomadic civilization in China is influenced by geographical environment, topography and climate. Farming civilized areas have fertile land, while nomadic civilized areas "see cattle and sheep at the slightest sign of trouble". In the same way, one of the reasons why the Manchu Dynasty was able to occupy the Central Plains in a certain year of the Ming Dynasty was that after more than a thousand years of scouring by the Yellow River, the western Liaoning Corridor was formed, thus changing the historical process of China. And carefully observe the topographic map of China and the territory of Qinghai-Tibet regime in China history, the Qinghai-Tibet Plateau is the main area.

To sum up, geography affects the development of history to a certain extent, and the history of human civilization will directly or indirectly change the local geographical environment. So history and geography are inseparable.