In the Southern and Northern Dynasties, China's calligraphy entered the era of "North Monument and South Sticking". Later, due to the split situation of the Northern and Southern Dynasties, the changes of some cultures between regions accelerated. Later, even calligraphy had some big differences, so that the Lan Dynasty inherited the tradition of the Eastern Jin Dynasty, mainly using running script and cursive script, while the Northern Dynasty inherited it, mainly using some evolved printing techniques.
The emperors of calligraphy in the Southern Dynasties and the life span of the Summer Solstice both inherited the style of the Eastern Jin Dynasty, while the calligraphy in the Northern Dynasties was dominated by unknown calligraphers. Later, in the Southern and Northern Dynasties, with the gradual change of the situation, calligraphy styles gradually merged together.
In fact, regular script originated from official script and evolved from Li Han. From the transitional period, it can be divided into Weibei and Tang Kai. Weibei refers to the characters in the Wei, Jin, Southern and Northern Dynasties, which is the transitional characters of regular script.
Foreign languages are the primary stage of regular script, and regular script only matured in the Tang Dynasty. Since then, regular script has become more mature, and the descendants of the three great calligraphers in the Tang Dynasty have taken the lead.
From the Southern Dynasties to the Northern Dynasties and then to the Tang Dynasty, official script evolved into regular script, which was formed by the ancients through hard work and gradual transformation and renewal in practical application. The experience and change this time and who understands it are a long and complicated process. The purpose of doing this is to make it more perfect, easier to write smoothly and more standardized. Yu Shinan's regular script: Although it is based on the Wei and Jin Dynasties, it sweeps away the weakness of Wei and Jin Dynasties, with elegant fonts, elegant lines and soft outside and rigid inside.