What historical periods did the development of classical gardens in China go through?

① Generation period: the royal gardens were grand and became the mainstream of gardening activities in this period: simplicity in Yin and Zhou Dynasties; Architectural palaces in Qin and Han dynasties and "one pool and three mountains"; Western Han Dynasty landscape architecture.

(2) Turning point: the garden aesthetic thought was initially established. Natural landscape gardens in the Southern and Northern Dynasties; Buddhist temple jungle and tourist attractions.

(3) heyday: the development of gardens entered its heyday, and as a garden system, its style characteristics were basically formed. Palace of garden architecture in Sui Dynasty; Palaces and amusement parks in the Tang Dynasty, natural garden-style mountain dwellings in the Tang Dynasty; Tang and Song Dynasties freehand brushwork landscape garden.

④ Maturity and late maturity: The development of gardens, on the one hand, inherits the mature tradition of the previous period and is more exquisite, on the other hand, it also exposes some declining tendencies. Landscape Palace in Northern Song Dynasty; Palace of Yuan, Ming and Qing Dynasties