Sima family is the biggest sinner in the history of Han nationality. Don't say that it has promoted the great ethnic integration. They are all official dialects. The chaos of the Eight Kings in the Western Jin Dynasty directly led to the chaos of the Five Kings. Foreigners invaded the Central Plains and killed people and ate people. The Han population was massacred on a large scale, leaving less than 4 million from the then population of160 thousand. If Ran Min the Great didn't reverse the situation in time, the Han nationality would almost perish. China's 5,000-year-old civilization was almost destroyed, as serious as the war of aggression against China.