Which dynasty did the vernacular novels start from?

The origin of vernacular novels can be traced back to the Ming Dynasty. In the Ming Dynasty, there was a literary form that used spoken language as the main means of expression-vernacular novels. The characteristic of vernacular novels was that they used easy-to-understand language to express themselves. They used spoken language and slang to express themselves. The representative works of the vernacular novels of this period were Dream of the Red Chamber, Water Margins, etc.