The understanding of the rise of the United States in modern history is probably 1500 words.

Summed up five points, the number of words should be similar.

(1) The American Civil War, that is, the second revolution, completely destroyed the rule of the slave owners in the south, ended the coexistence of two social systems (the northern industrial capitalist economy and the southern slave plantation economy) that existed for nearly a hundred years after independence, and various legislations that hindered the development of capitalism were abolished one after another, and methods that were conducive to the development of capitalism were established one after another, clearing the last obstacle for the development of domestic capitalist economy. Since then, the domestic market has expanded, and the economic and cultural ties between various regions in China, especially between the north and the south, have been strengthened, which not only brought about rapid changes in the economic outlook of the south, but also greatly promoted the leap-forward development of capitalist industrial and agricultural production in the north.

The United States is an immigrant country, and the formation of the immigrant country transplanted American capitalism. However, the United States does not have a deep-rooted feudal system and feudal ideas, nor does it have such a powerful feudal residual force as Europe to constrain the development of productive forces. This is another important reason for the rapid development of American capitalist economy. As we all know, the American nation began in the17th century, and after a century and a half, it was gradually formed by immigrants from Europe, Asia and Africa. In the process of its formation, it will inevitably absorb the wisdom and advantages of various immigrant peoples. Make the American nation an excellent nation that is hardworking, brave, intelligent and active. Most of these immigrants to the United States are poor people who are oppressed and persecuted by feudalism and religion. They hate feudalism. Everyone came to North America with almost the same desire to escape feudal exploitation and oppression, and established the bourgeois federal government through independence. The absolute rule of the bourgeoisie has been established in politics, economy, culture, ideology and legal system, which makes it different from other European countries, where strong feudal remnants have long delayed and hindered the development of capitalist economy.

At the same time, a large number of foreign immigrants and foreign capital have also strengthened the strength of the American bourgeoisie. During the forty years from 1860 to 1900, there were as many as14 million immigrants from Europe, Asia and Africa, most of whom were skilled technicians and skilled workers. At the same time, during this period, the foreign capital introduced by the United States reached 7 billion US dollars. With sufficient labor and available capital, it has also promoted the development of American capitalist economy. The American bourgeoisie has accumulated a lot of capital by using labor and exploiting blacks, which is conducive to the expansion of capitalist reproduction.

The presidential political system of separation of powers in the United States ensures the long-term stability and continuity of the American political system. This is also one of the important conditions for the rapid development of American capitalism.

The United States is a young capitalist country, and its territory has been expanding since the Civil War. Although immigrants from all continents poured in in a large number and continuously, they still could not meet the needs of industrial and agricultural production development, which prompted the United States to seek compensation for scientific and technological development. Therefore, during this period, on the one hand, the United States learned and absorbed a large number of scientific and technological achievements of western European countries, on the other hand, it actively encouraged its own inventions and creations. In the 1970s alone, the US government issued125,000 patent licenses, and in the 1980s, it even reached more than 200,000. Absorbing a large number of advanced technologies and scientific and technological achievements from various countries, developing science and rewarding inventions made the American industrial revolution have the characteristics of high starting point and high speed from the beginning, which also made it rise rapidly in a short time after the civil war, surpassing the old capitalist countries such as Britain, France and the Netherlands.

Superior natural environment and geographical conditions are another extremely favorable condition for the rapid development of American capitalism.

Open the map of the United States, on the one hand, we can see that 1865, after the end of the civil war, its territory expanded to a vast area bordering the Atlantic Ocean in the east, the Pacific Ocean in the west, Canada in the north and Mexico in the south. There are no strong neighbors around it that threaten its national security. Although the European powers are unwilling to withdraw from the United States, they are unable to do so, enabling the United States to concentrate on economic development. On the other hand, the United States has superior natural conditions, good climate and abundant resources, which is not only conducive to the development of agriculture, but also to the progress of industry. The superior natural environment and the above-mentioned unique conditions have created extremely favorable conditions for the development of American capitalism. By the end of19th century, it finally developed into the largest industrial power in the world.