Monday, September 7, 2009

The Great Wall

Although the great wall of china was built before the Ming Dynasty in the Qin Dynasty, most of it was built in the Ming Dynasty. It was used as defence against the invading Mongolian tribes and other threats. The full length stretches up to 8,851.8 km! It was also upgraded with watchtowers, cannons and harder stone to toughen it up.

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