The newly discovered private map was drawn by Ye Zipei (word Guimao), an official of the Qing Dynasty, at the end of June in the 25th year of Daoguang (1845). It was re-engraved in the year of Xianfeng in 1911 (185 1), with the names of "Zhuguo" on the side of the picture.
This map of the world, painted in Qing Dynasty, consists of the Eight Banners, screens and scrolls. Each banner is130cm long and 28cm wide. One to four flags are in the northern hemisphere, and five to eight flags are in the southern hemisphere, with a circular outline. The map is drawn by isometric polar diagram method, that is, the whole map is divided into two hemispheres with the north and south poles as the center and the equator as the edge. The northern hemisphere is called North because of the North Pole, with the word "North" on it. For the equator, it is called South, with the word "South" on it. The southern hemisphere is just the opposite.
The longitude of the map is moderate in Shi Jing, starting from the east and ending from the west. The warp and weft interweave to form a trapezoidal grid, and each warp and weft is a grid. Experts believe that this map is rigorous in cartography, meticulous in textual research, very appropriate in map pictographs, and very standardized in mountains, waters and cities, which has corrected many misunderstandings in previous maps at home and abroad and marked nearly 400 place names in detail, making it the most marked map of the world in China's map history.
China has a long history of surveying and mapping and map application. However, the earlier known maps of the world in China are the Geographical Map of the Great World drawn by Matteo Ricci, an Italian, in the 9th year of Wanli (158 1 year) and the Panorama of Kunyu drawn by Ferdinand ferdinand verbiest, a Belgian, in the 13th year of Kangxi (1674). Apart from these two maps of the world, there are no records and historical materials of China people drawing world maps.