As the US approached civil war, the country split increasingly. Sectionalism has become an issue. This is devotion to a country, but not the whole country. America used to be seen as either the south or the north. People of various areas of the nation often clashed. Even in Congress, this was true.

In the beginning of the 1800s, right after the 1812 War, sectionalism started to develop. The South and the North grew further as more factories were constructed. The nation also started to split in this manner when more individuals went to the west.

North people were busy building fresh plants. New plants. They worked in textile mills as well. People in the North supported a tariff to assist their companies. A tariff is a tax that costs more for products coming from outside the USA. The tariff would cost European goods more than American products. The tariff did not please people in the south. There have been many farms in the South. Not many factories have existed. The rate would not assist. They would not. For the things they purchased the South would have to pay more. They were very disappointed. Sectionalism relates to the various way of life, social structures, customs and political values of the North and the South. During the 1812 war, regional tension grew, which brought Northern discontent with an external trade embargo that disproportionately impacted Industrial North to the Hartford Convention.

Sectionalism continuously improved in the years 1800–1850 as the north industrialized, urbanized and constructed prosperous mills, the profound south focuses on slave-based planting, alongside subsistence cultivation for poor whites without the possession of slaves. Southerners supported slavery partly by saying that the employees of Northern factories worked in worse condition without their employers being taken care of. Slavery advocate has been called' the white slaves of the North' of factory workers.

While the slave system was being denounced by some Northern politicians and religious officials, northern industrialists and employees have benefited. However, in the border countries, slavery decreased and could only survive in towns and industrial regions (in towns like Baltimore, Louisville, and St Louis), with the South expanding into wealthy new lands in the southwest. So, in rural and non-industrial regions, slavery was declining in the countries on the frontier. The South was not very strong enough. On the contrary, the cost of slaves has been rising as demand for cotton has risen as slaves have been seen to be essential to cotton production and refining. Historians discussed whether the industry's financial differences. Some authors now conflict with Charles Beard's economic determinism in the 1920s and stress that the economies of the North and the South were complimentary.

It is the North that is changing and is prone to new "isms," while the South remained true to the Founding Fathers ' historic Democratic values (many of whom were slave-owned including Washington, Jefferson and Madison). The problem of acceptance of slavery (in order to dismiss slave owning Bishops and Missionaries), divided the largest religious denominations (the methodology).