After Qin Shihuang unified China (22 1 year ago), Xiao Zhuan implemented the policy of "writing is similar, cars are on the same track", and Prime Minister Li Si was responsible for the unified measurement. On the basis of the original script of the Qin Dynasty's Da Zhuan, Xiao Zhuan simplified it, canceled the other six scripts, and created a unified Chinese writing form.
As a way of communication, seal script was not used for a long time, and was replaced by official script in Han Dynasty. However, as an art, Xiao Zhuan has been circulated among scholars so far, and there have been many calligraphy and seal cutting masters who are good at Xiao Zhuan in the past dynasties, such as:
Li in Tang Dynasty, Zhou in Yuan Dynasty, Deng in Qing Dynasty, Wu Xizai in Qing Dynasty, Hu Shu in Qing Dynasty, Zhao in Qing Dynasty, Wu Dazhi in Qing Dynasty, Mo Youzhi in Qing Dynasty and Wu Changshuo in Qing Dynasty.