Answered by Mr.dzhoyan
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Apr. 08, 2009 22:42
First,the GreatWall was a fortification in the ancient times in China.
So when the Greatwall built in Qin Dynasty was destroyed , the other dynasty had to rebuild it to prevent enemies.
Now,It is a wonder and we appreciate it.But when the Greatwall was rebuilt in Ming Danasty about 16th century,the only reason was to prevent enemies.