What is the origin of the name' Jiuquan'?

The origin of Jiuquan's name is that after Emperor Wudi recovered Hexi area and established Jiuquan County, he set up two military passes, Yangguan and Yumenguan Pass, in Dunhuang. After the Western Han Dynasty recovered Hexi region, four counties, Jiuquan, Zhangye, Dunhuang and Wuwei, were established successively, which were called "Hexi Four Counties" in history. In the sixth year of Ding Yuan (1 1 1), Emperor Wu of the Han Dynasty established Dunhuang County to the west of Jiuquan. In 8 AD, Wang Mang proclaimed himself emperor, following the county system and establishing Fuping County (formerly Jiuquan County) and Dunde County (formerly Dunhuang County). Jiuquan, one of the four counties in Hexi in Han Dynasty, has been a traffic fortress from the Central Plains to the Western Regions since ancient times.

There is also a saying about the origin of Jiuquan's name that Jiuquan is named after "there are springs under the city" and "its water is like wine".