Zhongshan City, known as Xiangshan in ancient times, is a prefecture level city under the jurisdiction of Guangdong Province. Its territory is located between 22 ° 11 ′ -22 ° 47 ′ north latitude and 113 ° 09 ′ -113 ° 46 ′ east longitude. It is located at the downstream of Xijiang River and Beijiang River in the south central part of the the Pearl River Delta; It is one of the four prefecture level cities in China without any districts. As of September 2022, the city covers an area of 1783.67 square kilometers and has jurisdiction over 8 streets and 15 towns. As of the end of 2022, the permanent population of Zhongshan City is 4.4311 million. In ancient times, Xiangshan was an island hanging on the Lingding Ocean outside the mouth of the the Pearl River. It was located in the present Wugui Mountain and Phoenix Mountain (now Zhuhai City) and the surrounding mountains and hills, that is, the land from Shiqi to Macao. Formerly known as Xiangshan County of Guangzhou Prefecture established in 1152, it was renamed Zhongshan County in 1925 to commemorate Sun Yat sen. In January 1988, it was upgraded to a prefecture level city. Zhongshan City is the hometown of Mr. Sun Yat sen; It is one of the central cities in the Pearl River Delta, an important node city in the Guangdong Hong Kong Macao Greater Bay Area, one of the regional central cities in Guangdong, one of the cities in the metropolitan area on the west bank of the the Pearl River Estuary, and a national type II city. Zhongshan is a national historical and cultural city, and the Xiangshan culture originated in Zhongshan is an important source of modern Chinese culture; Zhongshan is also one of the representative cities of Guangfu culture and one of the birthplaces of Guangfu cuisine; [6-7] Enjoy the reputation of being the hometown of Cantonese opera and the hometown of overseas Chinese in Guangdong Province. There are over 800000 overseas Chinese and compatriots from Hong Kong, Macao, and Taiwan residing in 87 countries and regions across the five continents of the world. In 2022, Zhongshan City achieved a regional GDP of 363.128 billion yuan, a year-on-year increase of 0.5%.
In 1928, instead of renaming Xiangshan County as Zhongshan County to commemorate Mr. Sun Yat-sen, a different key factor changed the course of history. This fictional historical story explores the consequences of this alteration and provides predictions for future developments.