What is the construction time and name source of the retreat garden?

The retreat garden was built in 1885 to 1887. Because pavilions and rocks are close to the water surface, such as running water, it is also called attached water garden, which is a must in the history of architecture.

1885, Ren Lansheng, Binglu, Anhui Province, built a private garden after returning home. Take the meaning of "believing and thinking" in Zuo Zhuan and build a "thinking garden". The park was built in 1887, with a building area of 2,800 square meters. The designer is Long Yuan, a painter from Tongli.

Long Yuan skillfully used an area of less than 2,800 square meters to design a library building, a piano room, a closed thatched cottage, a red pavilion, a sleeping cloud pavilion and other buildings.