Short answers, pulled from the story.
Chongqing received its current name in 1189 when Prince Zhao Dun of the Southern Song dynasty was crowned Emperor Guangzong. This double celebration transformed Yu Prefecture into Chongqing Fu, establishing the city's modern identity.
Generalissimo Chiang Kai-shek utilized Chongqing as his provisional capital from November 1937 to May 1946. The city was formally declared the wartime capital on the 6th of September 1940 after the General and his army retreated from Wuhan in 1938.
The Eighth National People's Congress decided to merge the sub-provincial city with adjacent prefectures on the 14th of March 1997. This decision granted Chongqing independence from Sichuan province, with the first official ceremony taking place on the 18th of June 1997.
Chongqing earns the nickname Fog City because it records over 100 days of fog per year. The city also experiences frequent monsoon conditions and only receives 983 hours of annual sunshine nationally.
Leading manufacturers operating in Chongqing include Changan Automotive Corp, Lifan Hongda Enterprise, and Ford Motor Company. Southwest Aluminum stands as Asia's largest aluminum plant within the municipality.