Excitement abounds regarding the vicissitude of the Wall of the Qin, Han, and Ming Dynasties.
The Great Wall was originally built in the Spring and Autumn, and Warring States Periods as a defensive fortification by the three states: Yan, Zhao and Qin. It went through constant extensions and repairs in later dynasties. It began as independent walls for different states when it was first built, and did not become the "Great" wall until the Qin Dynasty. Emperor Qin Shihuang succeeded in his effort to have the walls joined together to fend off the invasions from the Huns in the north. Since then, the Wall has served as a monument of the Chinese nation throughout history.