1. Zhao Gao (207 BC), surnamed Ying, Zhao family. When the second emperor of the Qin Dynasty was the prime minister, he served as the magistrate of the Zhongche Mansion and concurrently served as the Fuxi magistrate, "in charge of affairs for more than twenty years." After the death of Qin Shihuang, Zhao Gao launched the Sand Dune Coup. He conspired with Prime Minister Li Si to forge an edict, forcing Qin Shihuang's eldest son Fusu to commit suicide, and appointed Hu Hai, the youngest son of Qin Shihuang, as emperor, the second emperor of Qin, and appointed himself Lang Zhongling. During his tenure, he monopolized power, formed cliques for personal gain, made conscription more onerous, and administered more harshly. In 208 BC, he planned to kill Li Si, who became the prime minister of the Qin Dynasty. In the third year, he forced Qin II to commit suicide and made Ziying the king of Qin. Soon he was killed by Ziying, and the three Yi tribes were punished.
2. Zhao Gao started as a eunuch and relied on the favor of Hu Hai, the second emperor of Qin, to push the Qin Dynasty's tyrannical and sexual politics to its peak, thereby accelerating its demise. Therefore, Lu Jia lamented that "the criminal law of Qin's appointment remains unchanged, and the Zhao family is destroyed by death" (referring to the demise of the Qin Dynasty); and Liu Xiang, the editor of "Warring States Policy", even bluntly said: "Qin Xin had the same surname as the king, and it was not easy for him to decline. With the same surname, the body will perish and the country will perish. Therefore, the rule of the king depends on the practice of law, not on the belief of the same surname."
3. In addition, Zhao Gao was also a master of calligraphy in the Qin and Han Dynasties. Xu Shen of the Eastern Han Dynasty said. "Wen Jie Zi Preface" says: "Zhao Gao wrote the "Yuanli Pian", which was based on the historical large seal script, or it may have been modified by some provinces." Wang Qing of the Northern Wei Dynasty's "Ancient and Modern Chinese Characters" lists five calligraphers from the Qin, Han and Wu dynasties. Nineteen people, including Zhao Gao. Yang Xin of the Song Dynasty in the Southern Dynasties said that Zhao Gao was "good at seal script" in his "Ability to Write People's Names from Ancient Times". Zhang Huai of the Tang Dynasty, "Dazhuan" in the "Shu Duan" volume says: "Zhao Gao was good at seal script. He taught Hu Hai, the youngest son of the First Emperor, how to write." He wrote six chapters of "Yanli Pian".