About 2,000 years ago, Shih Huang Ti, ruled one of the states called Ch'in. "Other rulers beforfe him had built short walls here and there to keep out wild tribesmen who robbed and killed the Chinese farmers." Shih Haung Ti ordered that all the short walls be joined together. All these short walls joined together created the Great Wall of China.
The Great Wall of China is the longest man-made structor with more than 1,500 miles long. It is 25 feet thick at the base , 25 feet tall, and 15 feet thick at the top.There were towers built every 200-300 yards.