The majority of China's population is the Han. Till now, China has officially identified, except for other unknown ethnic groups and foreigners with Chinese citizenship, 55 ethnic minorities. Ethnic minorities vary widely in size in China. With a population of more than 15 million, the Zhuang have been the largest minority group, and the Lhoba, with only 2 thousand or more, the smallest. China's ethnic diversity has resulted in a special socioeconomic...