What are some examples of promoting national unity and national unity in history?

China is one of the birthplaces of mankind. The ancestors of the Chinese nation have worked, lived and multiplied in this vast land since ancient times, from Yuanmou people, Lantian people to Beijingers, showing the evolution process of the earliest ancestors of the Chinese nation. A large number of archaeological cultural remains also illustrate the diversity of the origin of the Chinese nation. As early as the Neolithic Age five or six thousand years ago, there were three different system characteristics: North, Central Plains and South. However, Huaxia, Yi, Sanmiao and other ethnic groups are developing the Yellow River basin, the eastern coast and the Yangtze River basin, or later, the nationalities such as Di, Qiang and Rong are developing the northwest and west, the nationalities such as Pu and Yue are developing the south of the middle and lower reaches of the Yangtze River, the nationalities such as Di and Xiongnu are developing the northern grassland area, and the nationalities such as Su and Donghu are developing the northeast area. With the development of economy and culture in these areas and the strengthening of ties with the Central Plains, the foundation has been laid for the formation of a unified multi-ethnic country. In 22 1 BC, Qin Shihuang ended the 800-year-old vassal regime from the Western Zhou Dynasty to the Warring States, and established a unified, multi-ethnic and centralized feudal country. Since then, for more than two thousand years, reunification has been consolidated and developed, becoming the mainstream and essence of China's historical development. Because the Han nationality has the largest population in the Chinese nation, they have also established the most central dynasties. These dynasties were supported by ethnic minorities. Xiongnu, Xianbei, Tubo, Uighur, Khitan, Nuzhen, Mongolia, Manchu and other ethnic groups have also established political power in some areas and even the whole country, and all ethnic groups have contributed to the formation and development of a unified multi-ethnic country. The Chinese nation is a great nation that is hardworking, brave and creative. In thousands of years of historical development, it is famous for its splendid culture and prosperous economy. Known as developed agriculture and handicrafts, as well as four world-famous inventions-compass, papermaking, movable type printing and the application of gunpowder. It has produced many great thinkers, scientists, inventors, politicians, militarists, writers and artists. Historically, although ethnic groups have invaded and attacked each other, and there have been ethnic oppression and exploitation, there has always been a relationship of gradual progress, interdependence, friendly cooperation and common progress, which has become the mainstream of ethnic relations in China. The Chinese nation has a glorious revolutionary tradition. In order to resist class oppression, national oppression and foreign aggression, people of all ethnic groups have waged indomitable struggles. The common interests of working people urge workers of all ethnic groups to unite against class oppression. For example, the Han and Qiang Uprising in the Eastern Han Dynasty, the Taiping Heavenly Kingdom Uprising in the Qing Dynasty, and the Miao, Buyi and Dong Uprising led by Zhang Xiumei in Guizhou were all struggles in which many ethnic groups participated. Since modern times, the contradiction between the Chinese nation and colonialism and imperialism has gradually become the main contradiction in China society. The anti-colonial and anti-imperialist * * * and the * * * who seek national liberation share the same goal and destiny, further uniting all ethnic groups into a powerful whole, and all ethnic minorities have fought bravely and tenaciously together with the Han nationality. In the northeast and northwest regions, it resisted the aggression of Russian and Japanese imperialism; Struggles against British, French, Japanese, American and other imperialists were launched in the southwest and southeast regions, which foiled the plot of the great powers to carve up China. 19 1 1 year, the Revolution of 1911 led by Sun Yat-sen overthrew the Qing Dynasty and ended the feudal monarchy that lasted for more than two thousand years. However, the nature of semi-colonial and semi-feudal society has not changed. 192 1 China * * * after the founding of the production party, the struggle of people of all ethnic groups against exploitation, oppression and foreign aggression has entered a brand-new stage and has become an integral part of the world proletarian revolution. After four periods of Northern Expedition, Agrarian Revolutionary War (see ten-year civil war), War of Resistance against Japanese Aggression and Liberation War, the three mountains of imperialism, feudalism and bureaucratic capitalism were finally overthrown and the new-democratic revolution was realized. Regional ethnic autonomy has been implemented in areas where ethnic minorities live in concentrated communities, and people of all ethnic groups have successively completed democratic reform and socialist transformation. 1978 Since the Third Plenary Session of the Eleventh Central Committee of the China Producer Party, a new socialist ethnic relationship of equality, unity and mutual assistance has been developed. Socialist modernization in ethnic areas is accelerating, people's lives have been greatly improved, and the Chinese nation is showing itself to the world with a brand-new look.