蔡伦的密码：侗族如何保存最早的纸张 Cai Lun's Key: How the Kam People Preserved the Earliest Pap

An art professor and her students apprentice with Kam minority artisans deep in the mountains of southwest China to learn early papermaking technology. The Kam have lived secluded from the rest of the world for centuries. Their papermaking tradition can be traced directly to the Chinese official Cai Lun, who is credited with inventing paper over 2000 years ago. Kam artisans ado...