What is the evolution process of regular script?

Regular script in the Tang Dynasty, like the prosperity of the national situation in the Tang Dynasty, is really unprecedented. Calligraphy style is mature, and calligraphers come forth in large numbers. In terms of regular script, Yu Shinan, Ou Yangxun, Chu Suiliang in the early Tang Dynasty, Yan Zhenqing in the middle Tang Dynasty and Liu Gongquan in the late Tang Dynasty all regarded his regular script works as models of calligraphy. In ancient times, there was a saying: "Learning calligraphy must start with the pattern, and writing must start with the big characters. Chinese characters are based on Yan, Chinese characters are based on Europe, Chinese characters are ripe, and then they are gathered into small characters, which is the law. " However, according to the results of many years of experimental research, it is not appropriate for beginners to learn too big words first, but it is more suitable for Chinese letters. The regular script of Ou Yangxun, Yu Shinan and Chu Suiliang, three great calligraphers in the early Tang Dynasty, is the most suitable model for copying Chinese characters. This is a brief introduction as follows: Ou Yangxun's block letters, which originated from ancient Li, are in the style of two kings and the style of northern schools in the Six Dynasties. They are unique in structure, unique in originality, authoritative and influential in society, and are the standard for learning books. Investigating the characteristics of regular script, the pen is strong and powerful, the strokes are neat and tidy, and the structure is cheerful and healthy. His representative works of regular script inscriptions include "Jiuchenggong Liquan Ming" and "Huadu Temple Monument".