What are the main historical sources of Yuan history?

The historical sources of Yuan Shi are: first, a factual record; Second, the grand ceremony of Shi Jing; Third, biographies of collected works; Fourth, the interview. The History of the Yuan Dynasty describes the laws and regulations of the Yuan Dynasty in detail and preserves a large number of precious historical materials. Among them, astronomical, local and Hequ historical materials are precious. Tian Wenzhi absorbed the research results of Guo Shoujing, an outstanding scientist in Yuan Dynasty. Li Zhi was compiled according to Li Xi's Li Yi and Guo Shoujing's Jing Jing. Geographical records are compiled according to Dayuan unified records. The annals of rivers and canals are compiled according to books such as Shipping Ji Yuan and General Theory of River Defense.