An Analytical Study of the Expanded and Revised Map of Chongqing City
The Expanded and Revised Map of Chongqing City,which was optimized by Liu Ziru,has a history of over 100 years.It is the most elaborated ancient map of Chongqing City.During the recent years,it has attracted attention of the academic circle,but the research about it still waitsto be advanced.The author elaborately introduced and analyzed the origin,appearance and background of this map,especially investigated its finishing epoch from various aspects,and drew the personal conclusion.Furthermore,the author compared this map with the other ancient maps of Chongqing City and pointed out its historical value.The conclusion is that it provides many precious materials for the academic research of this city,including geography,history,and the economic development of this city.