Talk about the understanding of papermaking, including the influence and significance of who invented papermaking.

In ancient times, democracy was recorded by knotting ropes, and later, characters were gradually invented, and Oracle Bone Inscriptions was used as writing materials. Later, bamboo and wood chips (bamboo slips) and silk were found and used as writing materials. But paper was invented because silk was too expensive and bamboo was too heavy.

Cai Lun improved papermaking in the Eastern Han Dynasty, especially Cai Lun improved papermaking in the Eastern Han Dynasty (also known as "Cai Hou Paper"), which was a revolution in writing materials. It is easy to carry and widely used, which promotes the cultural development of China, Arabia, Europe and even the whole world. The invention of papermaking provided extremely favorable conditions for the vigorous development of education, politics and commerce in Europe at that time.