Mission Hills Academy, located in Pushang Formation, Bai Shu Village, Seven Towns, Zixing City, Hunan Province, is a Cao Shi Family Academy. Both Huguang Tongzhi and Qing Yi Tong Zhi Zhi were written by Cao Jing in the Northern Song Dynasty. Cao Jing was a neutral scholar during the Jiaqing period of the Northern Song Dynasty. He is a native of Chenzhou and once served as the magistrate of Yiyang County. He has a lot of political say. Celebrities of all ages have sung hymns, such as Huang Tingjian, a celebrity in the Northern Song Dynasty, who wrote Ode to the Good Government of Cao Hou. Guanlan Academy, a descendant of Cao Shi, has been completely renovated. It is one of the two academies of Cao Shijia in Song Dynasty, and the other is Lingquan Academy. With the multiplication of Cao Shi clans, Chenhou Academy, now Liaoshi Middle School, was rebuilt together with other nationalities in Qing Dynasty. On the other hand, the founder was Cao Hangxi, and the Duke of Hangxi was a scholar in the Shaoding period of the Southern Song Dynasty, and the official was the secretariat of Bazhou. According to Cao Shi's genealogy, it was the Duke who moved his family from Hengyang to Zixing Qili. In order to educate Cao Zhi's descendants, Cao Zhi's family school was founded in today's Qilibai Village in Zixing. The exact time when the Academy was established should be 123 1 year. Cao Shi's genealogy contains the inscription "On-the-spot Record of Rebuilding Guanlan Academy", in which it is clearly recorded that "Sitang Classics began in Shaoding Xinmao". According to the investigation, Xinmao is four years old, which is 123 1.