Guizhou is a province of the People's Republic of China located in the southwestern part of the country. Its provincial capital city is Guiyang.
During the Chinese Han Dynasty from about the third to the first centuries BCE, Guizhou was home to the powerful and independent Yelang polity, which covered parts of modern day Guizhou, Hunan, Sichuan and Yunnan provinces.
During the 8th and 9th centuries in the Tang Dynasty, Chinese soldiers moved into Guizhou (Kweichow) and married native women, their descendants are known as Lao-han-jen (original Chinese), in contrast to new chinese who colonized Guizhou at later times. They still speak an archaic dialect. Many immigrants to Guizhou were descended from these soldiers in garrisons who married non Chinese women.