Please introduce the Donggan people in Central Asian countries.

Donggan nationality (дунгане) belongs to a new ethnic group in the last hundred years, which originated from Hui nationality in China, Gansu and Shaanxi. Legend has it that when the Hui people moved to Central Asia for more than 100 years, someone asked them where they came from. They said "Donggan" (Longdong), and from then on Donggan became the name of this ethnic branch. 1942, Russia officially named this nation with the word "Donggan".

They migrated from China to Central Asia in the19th century, of which two were the largest. During the Tongzhi period of the Qing Dynasty, Bai Yanhu (1840-1882), the leader of the Hui people, launched an uprising of the Hui people in 1862-1870, which was later suppressed by the general of the Qing Dynasty, and one of the insurgents fled to the Qihe area of Russia at that time. Later1880s, the Russian government returned the Ili region (now Xinjiang) to China, and a large number of Hui people moved to Russia one after another, with nearly 10,000 people twice. After the integration of 100 years, the descendants of Hui people have become members of many Central Asian countries, but they still retain the oriental characteristics such as black eyes, black hair and yellow skin.

So I can speak Shaanxi-Gansu dialect of China Han nationality.