In which period did the "Xiangyun" pattern first appear?

The "Xiangyun" pattern first appeared in Chu area in the middle and late Zhou Dynasty.

From the middle and late Zhou Dynasty, the decorative style mainly based on moire gradually formed in Chu, especially the variant moire combining animals with moire. By the Qin and Han dynasties, this trend had spread all over the country and reached its peak. Clouds are magical and charming, and the changes of their natural forms have extraordinary charm. Clouds are scattered and scattered, which makes people daydream infinitely. Therefore, in the eyes of the ancients, the cloud is a symbol of auspiciousness and lofty, and it is a creation of heaven.

For example, the exquisite moire class in the Eastern Zhou Dynasty is typical.

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