The official script first appeared in China during the Han Dynasty and the Eastern Han Dynasty (AD 25 -220). At that time, the government needed a fast writing font, so the official script came into being. Lishu is characterized by vigorous and concise strokes, which is very suitable for writing official documents and memorials. The font of official script is also regular, which is easier to read than other fonts.
Cursive script, running script and regular script all evolved on the basis of official script. Cursive script is the most free and unrestrained font in Chinese character writing, and its strokes are mostly Lian Bi, with a wide variety, which is suitable for painting and calligraphy. Running script is a transitional font between cursive script and official script. Stroke is slightly more standardized than cursive, but it still has a certain writing speed and fluency. Regular script is the most standard and commonly used font, with neat font and relatively stable strokes, which is very suitable for printing and writing official documents.
Therefore, official script is the origin of cursive script, running script and regular script. At the same time, cursive script, running script and regular script also have their own characteristics and are widely used under different cultural backgrounds and writing needs.