The most important benefit by the unification was the construction of the so-called Great Wall which was designed to protect against incursions by the non-Chinese steppe people residing in the north region of China. Chinese sources may have exaggerated the expanse and length of the Wall and may have omitted the fact that part of the construction merely entailed merging and repairing walls already built by the individual states during the seemingly incessant warfare that afflicted the late Zhou period. Also, The First Emperor promoted the construction of other roads which expands from Xianyang, which naturally facilitated centralized control and the movement of Qin armies while simultaneously fostering commerce. Also, Qin’s standardization is
