During the Eastern Han and Three Kingdoms periods, paper files may coexist with bamboo slips files, but no real objects have been found. During the Eastern Jin Dynasty, bamboo slips completely withdrew from the historical stage, and the files were all paper.
Paper is an important invention of working people of ancient Han nationality. 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, they discovered and used bamboo chips, wood chips and silk as writing materials. But because silk is too expensive and bamboo chips are too heavy, paper is produced. As one of four great inventions of ancient china, papermaking, together with compass, gunpowder and printing, provided material and technical basis for the prosperity of ancient culture in China. The invention of paper ended the complicated history of ancient bamboo slips and greatly promoted the spread and development of culture. Paper-making is the crystallization of the long-term experience and wisdom of the working people of the Han nationality, and is used for sheet fiber products such as writing, printing, painting or packaging.
The map paper of the Western Han Dynasty unearthed in Fangmatan, Tianshui, Gansu Province is the earliest map paper found in the world.
Sheets made of plant fibers are used for writing pictures, printing books and newspapers, packaging, etc. Paper: the general term for paper. Paper is counted by sheets, so paper is generally divided into: letterpress printing paper, newsprint, offset printing paper, coated paper, book cover paper, bible paper, copy paper, paperboard and so on.