The Great Wall: A series of fortifications built along the historical northern borders of China.
The Great Wall of China, a UNESCO World Heritage site, was in news in the fourth week of June 2015 as Beijing Times published a survey report stating that around 30 percent of the Wall disappeared overtime and around 1185 km of the fortification are in poor condition.
The survey was conducted by the Great Wall of China Society in 2014.
As per the survey, the disappearance of over 1962 kms length of the wall, out of the total length varying between 9000 km to 21000 km, was caused by numerous factors over many centuries.
Some of them are perennial exposure to wind and rain, tourism, growth of plants in the walls and reckless human activities like stealing the bricks to build houses, etc.
The Great Wall is a series of fortifications made of stone, brick, tamped earth, wood, and other materials built along an east-to-west line across the northern borders of China. It is considered as the longest human construction in the world.
It stretches from Shanhaiguan on the east coast to Jiayuguan on the edge of the Gobi desert.
Its purpose was to protect the Chinese states and empires against the raids and invasions of the various nomadic groups of the Eurasian Steppe.
Though the construction of the UNESCO World Heritage site was first begun in the third century BC, nearly 6300 kms were built during the Ming Dynasty (1368-1644).
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