Where is Sichuan-Chongqing?

Sichuan-Chongqing refers to Sichuan Province and Chongqing Municipality. Anciently known as "Ba Shu". "Chuan" is the abbreviation of Sichuan Province, "Yu" is the abbreviation of Chongqing Municipality. Located in the Sichuan Basin and the eastern part of the Wushan Mountains, due to the geographical proximity of the two places, close to the cultural life customs, so "Sichuan and Chongqing" is a geographical concept, the two places are often referred to as the outside world "Sichuan and Chongqing".

The Sichuan and Chongqing regions are located in southwestern China and are part of the Han Dynasty. Due to the relatively closed natural conditions of being located in the hills and basins, the two regions are distinct but not identical in terms of language, food, customs and art.

Expanded:

The names Sichuan and Chongqing, both of which originated in the Song Dynasty. Song Zhenzong Xianping four years (A.D. 1001), the Northern Song dynasty on the local administrative division of a new adjustment, the land of Sichuan will be divided into Yizhou Road, Zizhou Road, Lizhou Road, Kui State Road, the seat of the present Chengdu, respectively, Santai, Hanzhong and Fengjie, collectively referred to as the Sichuan Gorge four roads, referred to as Sichuan Road, which is the beginning of the name of Sichuan.

In the Song Huizong Daguan three years (1109 AD) in the edict on the official use of the word Sichuan, which is seen as the beginning of Sichuan as the administrative division of the abbreviation. After this, the Song Dynasty, with the Sichuan prefect, the Sichuan system, and other official positions, that is, the central government officials stationed in the four provinces, will be the four provinces of Sichuan simply called Sichuan.

Chongqing, the city name, named in the Southern Song Dynasty, Chunxi sixteen years (1189 AD), Song Guangzong will be his own submerged clan Gongzhou ascension of the province renamed Chongqing.

Baidu Encyclopedia - Sichuan and Chongqing