Luo Hongxian (1504-1564), courtesy name Dafu, Haonian'an, Han nationality, was a native of Huangchengxi, Jishui, Ji'an Prefecture, Jiangxi Province (now Gucun, Jishui County). He was a scholar of the Ming Dynasty and an outstanding geographical cartographer. Throughout his life, he devoted himself to the study of geography and other sciences, "researching maps and observing history". He found that many maps at that time were inaccurate in density and distance, so he went out to investigate and collect information in person, and prepared to re-compile a map with rich content and accurate geographical location. Using the method of planning and drawing, he created map symbols and legends and drew it into the "Guangyu Map". The creation of an atlas in the form of an atlas not only inherited Zhu Siben's cartography method, but also developed it to make the map more scientific and practical. Luo Hongxian can be called the greatest cartographer in the East at the same time as Mercator.
