The correct answer to this open question is the following.
A result of the building of the Great Wall of China was that it prevented the entry of enemies such as the Huns and protected China from invaders.
This Great Wall is an ancient symbol of China and has a length of 13,000 miles. It was planed in the 3rd century BC by Emperor Qin Shi Huang. He wanted to protect the territory from invasions of Barbarians, Mongols, and other enemies. The wall also represented a symbol of power and autonomy for China.
