Lěiyáng
Lěiyáng lies in southern Húnán, the home of the Hàn official Cài Lún, remembered for improving the manufacture of paper. The town’s paper makers carried on a long tradition, producing several kinds of paper during the Táng and Sòng. By the Míng, local workshops had developed distinctive products, and their craft continued to flourish under the Qīng.