What are three countries, four cities and six immigrants?

1. The capital of Pakistan

Zhou Wuwang 1 1 year (BC 1066), Zhou Wuwang crusaded against Shang Zhouwang and overthrew the rule of Shang dynasty. After the establishment of the Zhou Dynasty, the clan of Ji surname was enfeoffed to Ba, and it was enfeoffed to the viscount like the monarchs of Chu and Wu at that time. Jiangzhou, the capital of Pakistan, which is now Chongqing, initially established a country with a certain scale.

2. The capital of Xia State

From the Yuan Dynasty to Zheng Zheng 1 1 (A.D. 135 1), the peasant uprising of the Red Scarf Army broke out nationwide. Ming Yu Zhen, the general of the Red Scarf Army in the west, captured Chongqing and nearby counties, took Chongqing as the base, and eliminated the influence of the Yuan Dynasty in Sichuan. In a.d. 1363, Ming proclaimed himself emperor, made the country summer, changed it to the sky, and made its capital in Chongqing.

3. The capital of the Republic of China

1937, July 7th Incident broke out in War of Resistance against Japanese Aggression. 165438+1October 20th, the national government issued a declaration, officially announcing the move to Chongqing. In the same year, 65438+February 1, the national government began to work in Chongqing. 1940 On September 6th, the National Government issued an order to designate Chongqing as the capital of the Republic of China. The national government moved its capital to Chongqing, which was an important event in China's modern history. With the inward migration of a large number of state organs, industrial and mining enterprises, financial institutions, scientific and cultural departments and various schools, Chongqing rose to be the political, military, economic and cultural center in the rear area of China during the War of Resistance against Japanese Aggression period and developed into a big city with a modern industrial base. 1On May 5, 946, the National Government issued an order to formally return Nanjing. So far, the National Government has been in Chongqing for 9 years and 6 months.

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Four major buildings in Chongqing:

Li Yan and his son in the Three Kingdoms, Peng Daya in the late Song Dynasty, Dai Ding in the early years of Hongwu in the Ming Dynasty, Li, the governor of Sichuan in the second year of Kangxi in the Qing Dynasty (1663), rebuilt Chongqing four times.

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Six migrations:

The first great migration took place after Qin came to Bashu and Qin destroyed the six countries. In 3 14 BC, the state of Qin thought that Shu was the commander and "moved the people of Qin". After Qin destroyed the six countries, Qin Shihuang moved them into Shu, such as Zhao Zhuoshi, Cheng Zheng of Qi State, Lv Buwei, a criminal of Qin State, and so on.

The second great migration took place from the end of the Eastern Han Dynasty to the Western Jin Dynasty. At the end of the Eastern Han Dynasty, when the Central Plains was in war, tens of thousands of residents of Wanwan and Sanfu fled to Sichuan, and were recruited as "Dongchuan soldiers" by Ada, a shepherd from Yizhou, which became the basic force of Ada's separatist regime in Sichuan. In AD 2 1 1, Liu Wu, a pioneer of Shu and Han Dynasties, entered Sichuan with more than 10,000 Jingzhou soldiers. In the seventh year of Yuankang in the Western Jin Dynasty (297), there was a drought in Yongzhou, and the following year there was a drought in six counties (now Gansu and Shaanxi), namely Lueyang, Tianshui, Fufeng, Shiping, Wudu and Yinping, and tens of thousands of refugees fled to Sichuan to starve to death. Li Te's family from Lin Wei, Lueyang (now Nan 'an, Gansu) came to Yizhou with the hungry.

The third great migration began in the second year of Jingkang in the Northern Song Dynasty (1 127). Nomads went south and attacked the capital of Song Dynasty (Kaifeng). The war lasted until the Southern Song Dynasty, when northern residents fled south with their families, and refugees from Shaanxi, Henan, Gansu and other regions moved to Sichuan to take refuge. According to relevant research, in the first year of Chongning in the Northern Song Dynasty (1 102), the total number of registered households in Sichuan was1833,805,255,000. In the thirty-second year of Shaoxing, Nanning (1 162), the total registered population of Sichuan was 3,949,200, and the total population was 1 1536438+00000. Compared with the previous figures, the total number of households increased by 2115,400, and the total population increased by 6,276,200, with net increase rates of 1 19% respectively. In the past 60 years, the average annual growth rate of households is 12.9‰, and the number of immigrants is 13.2‰. After deducting the annual natural growth rate of about 5‰, the total number of immigrants should be around 2.38 million.

The fourth great migration was at the end of Yuan Dynasty and the beginning of Ming Dynasty. After the Red Scarf Army Uprising at the end of Yuan Dynasty, the whole country was plunged into war for nearly 20 years. At the beginning of the Ming Dynasty, there were few registered permanent residence in Sichuan. As early as 1357 (the seventeenth year of Zheng Zheng), when more than 100 people entered Sichuan, the local villagers joined the army one after another. After Yu Zhen proclaimed himself emperor in Chongqing in the Ming Dynasty, war broke out in Hubei, and a large number of Huguang people, especially Xiaogan people in Macheng, moved to Sichuan. In the fourth year of Hongwu in the Ming Dynasty (137 1), after the Ming Dynasty pacified Sichuan, due to the vast territory and sparsely populated Sichuan, the labor force was urgently needed to resume production, and organized immigration activities began. The immigrants in the early Ming Dynasty were mainly Huguang people (including immigrants from Hubei, Hunan, Guangdong and Guangxi), and also immigrants from Shaanxi and other provinces. This immigration activity began at the end of Yuan Dynasty, reached its climax in the early years of Hongwu, and failed after the middle of Ming Dynasty. This is the first time that "Huguang fills Sichuan". According to historical research, in the fourth year of Hongwu (137 1), when the Ming Dynasty was in Pingshuo, there were about 1500 households with 937,500 people in Sichuan. Twenty-two years later, in the twenty-sixth year of Hongwu (1393), there were 2 15700 households and 1466800 people in Sichuan. The number of households increased by 67,500, and the population increased by 529,300, with net increase rates of 44% and 56% respectively, with average annual growth rates of 16‰ and 2 1‰ respectively. Excluding the natural growth rate of less than 8‰, it is inferred that the immigration scale of about 300,000 in the early Ming Dynasty is not bad.

The fifth great migration was in the early Qing Dynasty. After decades of war in the late Ming Dynasty, Sichuan was devastated and its population withered in the early Qing Dynasty. From the last years of Shunzhi, the Qing Dynasty implemented the policy of encouraging people from northern and southern provinces to farm in Sichuan. Since then, there has been a continuous wave of immigrants from northern and southern provinces moving into Sichuan, that is, the second "Huguang filling Sichuan" activity, which lasted for more than 60 years. In the meantime, there were more than 20,000 people stationed in the Eight Banners in Chengdu, mainly Manchu and Mongolian. The number of large-scale immigrants exceeded the previous number, which increased the population of Sichuan from about 500,000 in the early Qing Dynasty to 2,046,600 in the second year of Yongzheng (1724), and the immigration tide came to an end. In 39 years, the net increase was 6.5438+0.5466 million, with an average annual increase of 82.6‰. Excluding the natural growth rate of 8‰, the total number of immigrants reached 654.38+0.10.5 million. It's amazing, twice the original population base.

The sixth great migration occurred after the outbreak of War of Resistance against Japanese Aggression in 1937. Northeast China, North China and East China successively fell, and the National Government moved to Chongqing. A large number of factories, schools, enterprises and institutions moved to Sichuan, Yunnan, Guizhou and other provinces, and the eastern population moved in. According to relevant statistics, from June 1937 to 10 194 1, southwest provinces received about 100000-2000000 people from the east. Sichuan is a big southwest province with the highest proportion of immigrants, and it is the main digestion area for immigrants.

It's really hard to find these materials-but I like difficult questions, hehe.