When it began to build the great wall?

               Founded in the 3rd century B.C., QinChangCheng has 2300 years of history. If the aims at the back of the spring and autumn and warring states period and qi chu, etc, our Great Wall at least 27 years history. The Great Wall, the Ming dynasty even now have over 600 years.
               The Great Wall is built in China is also the world’s longest and biggest quantity of an ancient defense engineering. Eight century BC, since continued over 2000 years, built in northern and central China’s vast land, a total length of more than 50,000 km, called “fluctuation, and 100,000 more than 2,000 years.