Introduction to "The Map of the Emperor's Fortune": "The Map of the Emperor's Fortune", authored by Huang Sang, is 1.77 meters long, 1 meter wide and 25 centimeters thick. It is the only surviving stone-engraved imperial genealogy map in ancient my country. The layout of the monument is as shown in the picture above. The picture above lists the lineage of emperors in the history from the emperor of our country to Lizong of Song Dynasty. There are a total of 13 dynasties, 247 emperor titles and 195 monarchs. The following is the regularity reflected in Sima Guang’s imperial lineage diagram of “governance and chaos” and “separation and union”: “Since ancient times and now, governance cannot be 100%, but chaos is often 89%, and a ruler can also correct it. "As an argument, he advised the Emperor of the Song Dynasty to review the situation and consolidate the royal power. This picture has been cited in official history books and private writings of the Song and subsequent dynasties.