Legend has it that ancient countries and nations such as Yong, Shu, Qiang, Temminick, Wei, Lu, Peng and Pu in the south all joined the war when the fatuous crusade was fought. It can be seen that in that legendary era when history was not fully recorded, Qinling Mountain could no longer stop the military and horses in the south.

In the Warring States period, it was recorded in the literature: "The plank road is thousands of miles away, leading to Shu Han."

The plank road connecting Cuba and Qinchuan, a rich province of Shu, makes the famous saying "He who gets Shu wins the world" come true.