During the Spring and Autumn Period and the Warring States Period, there were great differences in languages among countries, which was a major obstacle to economic and cultural development. After Qin Shihuang unified the whole country, Prime Minister Li Si presided over the unification of the national characters, which was a great achievement in the cultural history of China. After the unification of Qin, these figures were called Qin Zhuan, also known as Xiao Zhuan.

Because of the inconvenience of writing seal script, official script appeared. 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 in Chinese character writing and a revolution in the history of calligraphy.

The prosperity of calligraphy art began in the Eastern Han Dynasty. Calligraphy theory's works appeared in the Eastern Han Dynasty, and the earliest calligraphy theory author was Yang Xiong at the turn of the Han Dynasty. The first calligraphy theory monograph was a cursive script written by Cui Yuan in the Eastern Han Dynasty.

Extended data

Methods of learning calligraphy:

1. Cover the manuscript with thin paper (silk) and write or draw as it is.

2. The learner writes on another piece of paper as accurately as possible against the original calligraphy post.

After writing it many times, write it again according to the original image left in your mind.

4, ask for correction, in fact, you can help yourself, choose what you think is most satisfactory and post it on the wall, observe from far and near, correct yourself, feel dissatisfied, write and post again, change again, and cycle.

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