For many years, people thought that this map of the capitals of past dynasties in the collection of Gulong University was unique, and the principle of "the isolated evidence does not stand" made people doubt this abnormal phenomenon in the history of knowledge. However, in 1988, Bordet base, Song Shiping, the former Japanese island and Nagasaki Hong Guang base discovered the maps of ancient capitals, and they also had the right to combine them. This time, the map is 220 cm long and 280 cm wide, and the Buron ancient edition is bigger, and it is drawn with thick paper. According to the research of Gonggu, it comes from the same source as Longguben, but it is slightly different. Maybe Buron. This is amazing, but the discovery continues. In recent years, Japanese scholars have discovered a map of Daming in Kumamoto Temple and the library affiliated to Tianli University, with Europe, Africa and Arabia on the left and huge Korea and Japan on the right. In recent years, China has also found Daming's mixed pictures in the First Historical Archives. This larger map also shows Europe, Africa and Arabia, but Africa on the left and South Korea on the right of this map are smaller than the above map, while the Japanese archipelago has become much bigger.

The obvious difference between Hong Guang Road Edition and Gulong Edition is that the map of Japanese area has been modified. But also made some copying mistakes. For example, mistake the coastline of the Mediterranean for a river.