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12/28/2016

Topic Reading-Vol.1722-12/28/2016

Dear MEL Topic Readers,
How long is China's Great Wall? 21,196 km
The Great Wall. It’s one of the wonders in the world and in history, such as Machu Picchu in Peru and Great Pyramid of Giza in Egypt. The original wall was built over 25 centuries ago and has on and off been rebuilt, maintained, and enhanced until the 17th century. It has recently been measured that the total length goes beyond 21,000 km, a little over the half of Earth’s circumference.
Though the wall was built to protect China from enemies outside, it has been ruined by natural erosions, human acts and negligence of their own people. It is one of the world heritage sites but there are endangered sections that need urgent repairs. Chinese government has been putting a lot of effort, work and money to conserve this historic asset and inherit it to the future. Modern technologies such as drones are playing important roles to inspect and patrol this ancient structure.
Enjoy reading and learning how significant this great wall is.
Also, if you’re interested in a human story of the wall, check this out.

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