When did Guqin appear?

Guqin, also known as "lyre", is often called "Qin" in history books. In Tang poetry, there is a famous sentence "Your lyre is like the sound of cold wind in Songtao", and "Lingling lyre" refers to guqin. Qin unearthed from Leigudun Tomb in the Spring and Autumn Period and Mawangdui Tomb in the Western Han Dynasty further confirmed its long history. In ancient books such as The Book of Songs and Shangshu, as well as in Tang and Song poetry, we often see the continuation of Qin and Qin music. It has been circulating in the history of China for more than 3,000 years without interruption. At the beginning of this century, it was called "Guqin". Therefore, Guqin is a national musical instrument with a long history in China. You can also go to Baidu Encyclopedia for details.