The victory of the North in the war established the dominant position of the big bourgeoisie in the whole country. The civil war eliminated slavery, thus clearing the way for the rapid development of American capitalism. The implementation of the Homestead Law has accelerated the development of the western region. Promote the victory of the American way in the development of agricultural capitalism. Therefore, at the end of 19, the United States became the most advanced industrial and agricultural capitalist country in the world. In the post-civil war reconstruction period, blacks were still discriminated against in many aspects and exploited by plantation owners, but they gained civil rights and voting rights politically and were liberated from the shackles of slaves. Therefore, the American Civil War is of epoch-making significance in the development of American history. The Civil War was the second bourgeois revolution in American history. Although the number of casualties exceeded 600 thousand, it solved the land problem of citizens and developed the wasteland in the west. Most of the developed land in the west has been used as an industrial center, which has safeguarded national unity, cleared the way for the accelerated development of American capitalism and laid the foundation for the United States to rank among the world powers.

Limitations: Lincoln abolished slavery only in the southern rebel States. Although these blacks have been liberated, they have not obtained the same rights as whites, and the problem of blacks still exists.