The Great Wall of China is a series of fortifications made of stone, brick, wood and tamped earth, other materials, generally, built along an east-to-west line across the northern borders of China to protect historical the Chinese states and empires and invasions against the raids of the various groups of the Eurasian nomadic Steppe Several walls were being built. as early as the 7th century bce, when the//great wall of China more than 2500 years ago, created since before the days of Emperor chin c. Hong teh first in history of China. The aim is to prevent invasions from northern tribes, with further construction by Hong teh following several elements he finally succeeds in the end. The great wall of China is believed to be the most wonderful construction of Earth ever.
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