History of Guiyang
he valley approximating present-day Guiyang has been inhabited since the Spring and Autumn period. Guiyang was a 7th-century military outpost under the Sui and Tang, when the area around it was known as Juzhou (矩州). It grew into a city named Shunyuan under the Mongolian Yuan dynasty sometime between their 1279 southwestern campaigns and 1283. By the time Guizhou became a full province in 1413, its capital at Guiyang was also known as Guizhou. It became a prefectural seat under the Ming and Qing. Guiyang grew rapidly during the development of the southwest that occurred after the Japanese invasion of China during World War II. It has also grown rapidly since Deng Xiaoping’s economic reforms reached it in the 1990s.
Source From: https://en.wikipedia.org/wiki/Guiyang#History