Equivalent to the human footprint line

Human civilization is the hoof of a horse.

Human civilization is a horseshoe trace, and all civilization plates raced around the Middle Ages. I occasionally read this sentence on the Internet, but I may not feel anything about it when it doesn't involve anything related to horses. But at this stage, I just searched a lot about horses. When I saw this sentence, there was only one concept in my mind: piercing the inside.

Counting the history of human civilization is basically inseparable from horses. This is why China left so many poems about horses. Li Bai, Du Fu, Su Shi and others also left many poems about horses. Although Cao Zhi's White Horse Piece is not a direct description of the horse, it has been blessed by the horse and has become a masterpiece through the ages.

The spirit that the horse has always represented is basically positive, such as the spirit of dragon and horse, the leap of dragon and tiger and so on.