Generally speaking, seal script includes all the characters before official script and their extended genera, such as bronze inscriptions, Shi Guwen, ancient prose of Six Kingdoms, small seal script, Miao seal script, overlapping seal script and so on. Narrow sense mainly refers to "Da Zhuan" and "Xiao Zhuan". The font of seal script is round and the structure conforms to the meaning of six books, so Sun said in the Tang Dynasty, "Seal script is graceful and smooth".
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Li Si, the originator of Xiao Zhuan, was born in Shangcai (now Shangcai County, Henan Province) during the Warring States Period. Later, he did the Qin Dynasty, and compiled and formulated the regular script and seal script of the Qin Dynasty. The stone tablet "Yishan" existing in Xi 'an stele forest was carved in the Song Dynasty. Most of the stone carvings in the book have been destroyed. There are only two original stones left in the world. ?
Seal script declined after Wei and Jin Dynasties, with Li as the representative in Tang Dynasty. The calligraphy of seal script in Qing Dynasty ushered in the second peak of creation, and a large number of outstanding seal script writers such as Wang Shu, Qian Zhan, Deng, Zhao and Wu Changshuo emerged.
After the founding of People's Republic of China (PRC),,, Sha Menghai, Huang, Liu Jiang, Lai Chusheng, Zhang Xin, Lu, Ni, Shang Chengzuo, Xu, etc.