Li's seal script was harsh and inconvenient to write, so official script appeared. Official script is a victory of seal script. Its purpose is to facilitate writing. During the Western Han Dynasty, official script changed from seal script to official script, and its structure changed from vertical to horizontal, with more obvious lines and waves. The appearance of official script is a great progress of China characters and a revolution in the history of calligraphy, which not only makes Chinese characters tend to be square, but also breaks through a single center in brushwork, laying the foundation for various calligraphy schools in the future. In addition to the above calligraphy masterpieces, there are also handwriting such as imperial edict, weight, tile and coin. In the Qin dynasty, the style was very different. Calligraphy in Qin Dynasty left a brilliant page in the history of calligraphy in China, which is a pioneering work.
Seek degrees and rhyme.
-Eastern Han Dynasty to Southern and Northern Dynasties