Silk is a natural protein fiber. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm.
China is the first producer of silk in the world. Silk cocoons and bits of silk have been found among the relices from 4700BC. Today, centers of silk production are mainly in southern China, Suzhou and Hangzhou.
The cultivation of the silkworm can be traced back ot the 3rd century B.C. It was said that Leizu, a legendary figure of prehistoric China, started the planting of mulberry trees and rising of silkworms. It was called “sericulture take silk”.
At early as the 4th century B.C., local people in Sichuan Province were able to produce a kind of plain silk cloth called bo and brocade was first produced in Chengdu, Sichuan by weaving on this cloth.