 Use of wild grapes in production of alcoholic beverages has been attested at the Jiahu archaeological site (c. 7000 BC).High quality wine called "qióng jiāng yù yè" () is mentioned in the "Complete Tang Poems" "(Quan Tangshi)", an 18th century collection of around 50,000 poems compiled during the reign of Emperor Kangxi.The phrase, which translates literally to "jade-like wine", but has an idiomatic meaning along the lines of "wonderful wine".