Map of the U.S. Showing the Northern (yellow) & Southern (light green) States

The causes of the Civil War were many. Some historians say the reasons can be traced all the way back to Colonial times when troubles between "Tidewater" (coastal region) and "Piedmont" (the interior) settlers often reflected differences in philosophies of government. The Tidewater was an older, more settled region, and its citizens wanted little government interference; Piedmont people, on the other hand, looked to government for protection along the frontier, for ready money and light taxation.

Under the Articles of Confederation, adopted while the American Revolution was still being fought,    sovereignty rested with the states, and they gave very limited powers to a weak central administration. With the adoption (1787) and ratification of the federal Constitution, however, strong national government began in America.

It is probably safe to say however, that there were two main issues/causes of the war between the states:

"State's Rights" and "Slavery"

By early 1861, just before the outbreak of the Civil War, serious economic and ideological differences -among them states' rights and slavery- divided the people of the young nation. These differences also divided the country geographically. Nineteen states, including the industrialized northern states, prohibited slavery, while fifteen southern states, whose economies depended on agriculture, permitted the ownership of slaves. Eleven of the southern states withdrew from the Union and formed the Confederate States of America.

The chief and immediate cause of the war was slavery. Southern states, including the 11 states that formed the Confederacy, depended on slavery to support their economy. Southerners used slave labor to produce crops, especially cotton. Although slavery was illegal in the Northern states, only a small proportion of Northerners actively opposed it.

The main debate between the North and the South on the eve of the war was whether slavery should be permitted in the Western territories recently acquired during the Mexican War (1846-1848), including New Mexico, part of California, and Utah. Opponents of slavery were concerned about its expansion, in part because they did not want to compete against slave labor.

~ Economic and Social Factors ~

By 1860, the North and the South had developed into two very different regions. Divergent social, economic, and political points of view, dating from colonial times, gradually drove the two sections farther and farther apart. Each tried to impose its point of view on the country as a whole. Although compromises had kept the Union together for many years, in 1860 the situation was explosive. The election of Abraham Lincoln as president was viewed by the South as a threat to slavery and ignited the war.

 During the first half of the 19th century, economic differences between the regions also increased. By 1860 cotton was the chief crop of the South, and it represented 57 percent of all U.S. exports. The profitability of cotton, known as 'King Cotton,' completed the South's dependence on the plantation system and its essential component, slavery.

The North was by then firmly established as an industrial society. Labor was needed, but not slave labor. Immigration was encouraged. Immigrants from Europe worked in factories, built the railroads of the North, and settled the West. Very few settled in the South.

The South, resisting industrialization, manufactured little. Almost all manufactured goods had to be imported. Southerners therefore opposed high tariffs, or taxes that were placed on imported goods and increased the price of manufactured articles. The manufacturing economy of the North, on the other hand, demanded high tariffs to protect its own products from cheap foreign competition.

Before the Civil War, the federal government's chief source of revenue was the tariff. There were few other sources of revenue, for example, since neither personal nor corporate income taxes existed. The tariff paid for most improvements made by the federal government, such as roads, turnpikes, and canals. To keep tariffs low, the South preferred to do without these improvements.

Taxes plagued federal-state-citizen relationships throughout the first half of the 1800s. The first protective tariff in 1789 brought the earliest of many clashes between Northern and Southern economic views. Southern producers wanted a tariff on hemp; Northern users wanted none. Gradually tariff arguments pitted Northern manufacturing interests and small farmers against Southern planters and slaveholders.

Despite being Vice President (under President Andrew Jackson) John C. Calhoun wrote the "South Carolina Exposition and Protest," which the South Carolina legislature adopted (in 1828) as its manifesto against bad federal laws. In it, Calhoun ingeniously claimed the right of states to nullify federal laws that they deemed unconstitutional. The "Nullification" controversy came to a head in 1832 when South Carolina declared the tariff laws null and void and President Jackson responded with the threat of force. By this time Calhoun had resigned the vice-presidency and became a South Carolina senator. His theories of government helped shape South Carolina's views, and at length he devised a theory of secession that prescribed the steps for leaving the Union. Although a compromise solution to this particular crisis was found, Calhoun's ideas were to be invoked again in 1861.

The expanding Northwest Territory, which was made up of the present-day states of Ohio, Indiana, Illinois, Michigan, Wisconsin, and part of Minnesota, was far from the markets for its grain and cattle. It needed such internal improvements for survival, and so supported the Northeast's demands for high tariffs. In return, the Northeast supported most federally financed improvements in the Northwest Territory.

As a result, although both the South and the West were agricultural, the West allied itself with the
Northern, rather than the Southern, point of view.
Economic needs sharpened sectional differences, adding to the interregional hostility.

~ Slavery and Territorial Expansion ~

Politics and economics conspired against the Union in the next 30 years. Politics became inextricably mixed with the slavery issue in the years after the "Missouri Compromise" (1820-21), by which Maine entered the Union as a free state and Missouri as a slave state, but slavery was forbidden in the rest of the Louisiana Purchase territory north of 36 deg 30' north latitude. Southern leaders feared their power in the House of Representatives would dwindle as new free states were created. They resisted in the Senate by calling for a Southern slave state to balance every Northern free one and by upholding the ideas of state sovereignty and the sanctity of private property--even slaves.


(See Bibliography below)

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Bibliography: Craven, Avery O., The Coming of the Civil War (1942; 2d ed. 1947; repr. 1966), and The Growth of Southern Nationalism, 1848-1861 (1953); Freehling, William W., The Road to Disunion (1990); Knoles, George H., ed., Crisis of Union (1965); Potter, David M., The Impending Crisis, 1848-1861 (1976); Rawley, James A., Secession (1989); Sewall, R. H., A House Divided (1988); Stampp, Kenneth M., ed., Causes of the War (1959; rev. ed. 1974; repr. 1986).

© Copyright "The American Civil War" - Ronald W. McGranahan - 2004 -2005. All Rights Reserved.