There seem to be many yellow people in Kazakhstan and Uzbekistan. What happened?

The descendants of immigrants from China and Mongolia have many elderly people who can speak Chinese, wearing robes, robes and melon hats, and many ancestors lived there to grow vegetables and melons for a living. In fact, they are very rich because few people can grow them. These people went from China, and there are many descendants of Mongols, because in the Yuan Dynasty, Mongolia sealed the four major khanates, and most of them lived in Mongolia before being annexed by Russia.