bantu saya yaaaaaaa pliisss

1. the great wall of china is one of the biggest sight in the world

2. in 1368-1644 but was rebuild at 1950s

3. the great wall is not just a wall, it was a interegred millitary defensive system with watchtowers for survervillance, fortresses for command post logistic, beacon towers of communication and etc.

4. was to proctect silk road trade 

5. the history and stuff

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smoga membantu............