Look for the source of a book

The length of books is generally short, but even so, books are still very heavy, so there is a saying that "books are called by stones" and "learning is rich." Books made of bamboo slips are easy to fall off and lose after a long time, resulting in simplification and wrong simplification, and become "incomplete editions". Therefore, in order to unify the version of Confucian classics, the classics were carved on stone tablets after the Han Dynasty respected Confucianism alone, which was called "Shijing".

According to the introduction of online chat system, the sword side can also be made of sawdust. Wood chips can be made wider, so they are also called square strategy, plate and slip. A wide block of wood can draw a map, so the map is also called a "map". Generally speaking, calligraphy is not used for books or documents, but for letters or registered items. The wooden slips used for letters are about 1 foot long, so they are called "foot slips". After writing the letter on the wooden slip, add a version on it, called "Cha", for signing. When the two versions are combined, tie them with a rope, press a small piece of mud at the knot, that is, "seal the mud", and affix a seal on the seal, that is, "seal". Later, it was developed to seal with wax. The sealed soil is very hard and will not change in 2000. Can still be found in archaeological excavations.

Because bamboo slips are too big, people use bamboo slips and wooden slips as writing materials, which are called silk books. Mo Ziyun said, "Write on bamboo and silk, and carve on stone." The earliest silk book discovered by our archaeology is the Warring States silk book unearthed from Changsha ammunition depot. Later, a large number of Chinese silk books were unearthed from No.3 Han Tomb in Mawangdui, Changsha. During the Chen Guang uprising, he wrote the trick of "carrying a book on the belly of a fish" on a silk book with cinnabar, and then stuffed it into the belly of a fish. Books written in silk are easy to stretch and can be rolled into rolls, so books are also called books, hand rolls and paper. "Volume" has also become the unit of quantity of books. In order to facilitate the retrieval of rolled books, the roll mouth should be marked with a label made of bamboo sticks. Although silk books are light and convenient, they are too expensive and have limited use. Moreover, silk is more difficult to preserve than bamboo slips, so it is rarely handed down.

Paper was invented at least in the Western Han Dynasty, but it was very rough at that time and could only be used for wrapping things, not writing. Talking about the online chat system in the Eastern Han Dynasty, after Cai Lun improved the raw materials and technology of papermaking, the quality of paper was greatly improved and it became suitable for writing. However, it was not until the 3rd year of Jin Yuan Xing (404) that Huan Wen ordered: "There was no paper in ancient times, so bamboo slips were used, not for sacrifice. Use yellow paper instead of Jane's. " This is to abolish bamboo slips and write entirely on paper.