How did the name "Chongqing" come from?

Chongqing is a famous cultural city with a long history. As early as the Neolithic Age, many ethnic tribes lived here. By the Xia, Shang and Zhou Dynasties, a powerful slave tribe alliance had been formed here, collectively called "Ba".

From "Ba" to "Chongqing", the name has experienced many historical changes. In the fifth year of Shen Jing, Qin destroyed Pakistan and Sheba County. Ba County was renamed Jiangzhou in Han Dynasty. During the Wei, Jin, Southern and Northern Dynasties, it was renamed Jingzhou, Yizhou, Bazhou and Chuzhou. Because Jialing River was called Yushui in ancient times, Chuzhou was renamed Yuzhou when Emperor Wendi of Sui Dynasty.

During the Northern Song Dynasty, Dr. Zhao Patent of the Song Dynasty was secretly accused of deliberate rebellion in Yuzhou. The court was worried that "Chongqing" meant "change", so it changed Yuzhou to "change". In the first month of the sixteenth year of Xiaozong, Zhao Wang was crowned King Gong. In February, Zen became emperor, boasting "Double Celebration", so the Duke of Zhou was upgraded to Chongqing.

1June 997 18, Chongqing municipal government agencies were officially listed, and Chongqing became a municipality directly under the central government.

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Topography of Chongqing

There are Daba Mountain in the north, Wushan Mountain in the east, Wuling Mountain in the southeast and Dalou Mountain in the south of Chongqing. The elevation of the main urban area of Chongqing is mostly between 168 ~ 400 meters. The highest peak in the city is Yintiaoling, the main peak of Liang Jie on the eastern edge of Wuxi County, with an altitude of 2796.8 meters; The lowest is the Yangtze River in Wushan County, with an altitude of 73. 1 meter. The height difference in Chongqing is 2723.7 meters. The territory of high mountains and deep valleys, ravines. Mountain areas account for 76%, hills account for 22%, and valley flat dams only account for 2%.

Among them, the area below 500 meters above sea level is 3 1.8 thousand square kilometers, accounting for 38.1%of the national territory; 20,900 square kilometers at an altitude of 500-800 meters, accounting for 25.46438+0% of the land area; 16800 square kilometers at an altitude of 800 ~ 1200m, accounting for 20.42% of the national territory; 1.280 square kilometers at an altitude of 1.280 meters, accounting for 15.56% of the national territory.

Chongqing's topography gradually decreases from north to south towards the Yangtze River basin, with hills and low mountains in the northwest and middle, and two mountains, Daba Mountain and Wuling Mountain, in the southeast, with many slopes, so it is called "Mountain City". The general terrain is high in the southeast and northeast, low in the central and western regions, and gradually decreases from north to south to the Yangtze River basin.

Baidu Encyclopedia-Chongqing