The role of immigrants in high school history and politics

The westward movement of the United States is a process of continuous immigration and territorial expansion to the west, and immigration to the west is both a prelude and a result of American territorial expansion.

Impact:

1, the realization of mechanization, regionalization and specialization.

2. The development and rise of western industry.

3. The revolution of transportation industry

4. The rise of western cities

The westward movement promoted the rapid development of agriculture, industry and transportation, and also promoted the process of urbanization in the United States.