Sectionalism is the seperation bewteen two groups. Most all industry (factories) were in the North, and materials (such as cotton, sugar) were in the south. The south provided the north with raw materials and in return for goods/products. This caused sectionalism, because the North were generating more profits than the south. The south only had crops, and as the price of crops continued to go down, southerners were getting angry. The industrial revolution further divided the country, it was the urban vs. the rural.
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When people are treated poorly based on their race or skin color
Farmer rented land from landowners in return for a share of the crops
One reason could be that since England has colonized most of the countries in the past, the English language has been spread around. Another reason would be since English speaking countries like the US and Britain are powerful economically, knowing English is very important when making trades and business deals.
The area that was supposedly owned by Mexico which was settled by many Americans in the western part of America today is California. This happened after the Mexican — American war where Mexicans give up any claim to California even if it’s against their will.