Have you hear about the strategist of the Shu State Zhuge Liang’s tactics, such as “Empty city”, “Burning of the Red Cliffs”, “Borrow arrows with thatched boats” in the Spring and Autumn Period? He used the Eight-Diagram tactics on the battlefield, and obtain the victory finally. His later generations built a village with a Eight Diagrams layout. It's in Lanxi city, a small village about 18 kilometers from Zhejiang province. It’s called Zhuge Village.