In which period did paper replace bamboo slips as the most important writing material?

During the Wei, Jin, Southern and Northern Dynasties, paper replaced bamboo slips as the main writing material. Bamboo slips are bamboo slips and wood chips used for writing in ancient China, which are called open books. In fact, it is a general term for several things, referring to bamboo slips, wooden slips, bamboo slips and wooden slips.

Before the invention of paper, bamboo slips were the most important form of China's books, which had a far-reaching influence on the book system of later generations. Today, the terminology, writing format and writing method of books still inherit the tradition formed during the bamboo slips period. The writing tools used in bamboo slips are pen, ink and knife. The characters on bamboo slips are written with pen and ink, and the main function of the knife is to correct typos, not carving.