Zhidao Yuanbao "is a currency minted by Emperor Taizong of Song, Zhao Guangyi, in the first year of Zhidao (995 AD). The diameter of this coin is about 2.5 centimeters and its weight is about 3.8 grams. Qian Wen has three types of writing styles: regular script, running script, and cursive script. It is said to have been handwritten by Emperor Taizong of Song, Zhao Guangyi, and is known as the "Imperial Script". Zhidao Yuanbao held an important position in the ancient currency system. As a currency of the Song Dynasty, Zhidao Yuanbao played an important role in circulation. At the same time, the casting and circulation of Zhidao Yuanbao also reflected the economic prosperity and social stability of the Song Dynasty.