In which era in China did official script come into being? What are its main characteristics?

Clerical script is a common solemn font in Chinese characters. The writing effect is slightly wide and flat, with long horizontal strokes and short straight strokes. It pays attention to "silkworm head and swallow tail" and "twists and turns". It originated in the Qin Dynasty and reached its peak in the Eastern Han Dynasty. It is known as "Han Li Tang Kai" in the calligraphy circle. It is also said that official script originated during the Warring States Period. Official script is relative to seal script, and the name of official script originated from the Eastern Han Dynasty. The emergence of official script brought Chinese calligraphy art into a new realm. It was a turning point in the history of the evolution of Chinese characters and laid the foundation for regular script. The structure of official script is flat, neat and delicate. By the Eastern Han Dynasty, the strokes, strokes, dots and other paintings were transformed into upward strokes, with changes in light and heavy pauses and the beauty of calligraphy art. The style also tends to be diversified, which is of great value for artistic appreciation.

According to legend, the official script was compiled by Cheng Miao, a calligrapher of the Qin Dynasty, in prison. He eliminated complexity and simplified it. The character shapes were changed from round to square, the strokes were changed from curved to straight, and "continuous strokes" were changed to "broken strokes". Lines to strokes, making writing easier. As the first Qin Li, many seal characters were left behind, which were continuously developed and processed, breaking the writing tradition since the Zhou and Qin Dynasties, and gradually laying the foundation for regular script. Under the unification of the idea of ??"deposing hundreds of schools of thought and respecting Confucianism alone", the official script of the Han Dynasty gradually developed and became the dominant calligraphy style. At the same time, various calligraphy styles such as cursive script, regular script, running script and Yan script were also derived, laying the foundation for art. Base.