Slavery in the United States

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Slavery in the United States was the legal institution of human chattel enslavement, primarily of Africans and African Americans, that existed in the United States of America in the 18th and 19th centuries after it gained independence and before the end of the American Civil War. Slavery had been practiced in British America from early colonial days, and was legal in all Thirteen Colonies at the time of the Declaration of Independence in 1776.

By the time of the American Revolution (1775–1783), the status of slave had been institutionalized as a racial caste associated with African ancestry.^[1] When the United States Constitution was ratified (1789), a relatively small number of free people of color were among the voting citizens (male property owners),^[2] during and immediately following the Revolutionary War, abolitionist laws were passed in most Northern states and a movement developed to abolish slavery. Most of these states had a higher proportion of free labor than in the South and economies based on different industries, they abolished slavery by the end of the 18th century, some with gradual systems that kept adults as slaves for two decades. But the rapid expansion of the cotton industry in the Deep South after the invention of the cotton gin greatly increased demand for slave labor, and the Southern states continued as slave societies. Those states attempted to extend slavery into the new Western territories to keep their share of political power in the nation; Southern leaders also wanted to annex Cuba to be used as a slave territory. The United States became polarized over the issue of slavery, represented by the slave and free states divided by the Mason–Dixon line, which separated free Pennsylvania from slave Maryland and Delaware.

Congress during the Jefferson administration prohibited the importation of slaves, effective 1808, although smuggling (illegal importing) was not unusual.^[3] Domestic slave trading, however, continued at a rapid pace, driven by labor demands from the development of cotton plantations in the Deep South. More than one million slaves were sold from the Upper South, which had a surplus of labor, and taken to the Deep South in a forced migration, splitting up many families. New communities of African-American culture were developed in the Deep South, and the total slave population in the South eventually reached 4 million before liberation.^[4][5]

As the West was developed for settlement, the Southern state governments wanted to keep a balance between the number of slave and free states to maintain a political balance of power in Congress, the new territories acquired from Britain, France, and Mexico were the subject of major political compromises. By 1850, the newly rich cotton-growing South was threatening to secede from the Union, and tensions continued to rise. Many white Southern Christians, including church ministers, attempted to justify their support for slavery^[6] as modified by Christian paternalism, the largest denominations, the Baptist, Methodist, and Presbyterian churches, split over the slavery issue into regional organizations of the North and South. When Abraham Lincoln won the 1860 election on a platform of halting the expansion of slavery, seven states broke away to form the Confederacy. The first six states to secede held the greatest number of slaves in the South. Shortly after, the Civil War began when Confederate forces attacked the US Army's Fort Sumter. Four additional slave states then seceded. Due to Union measures such as the Confiscation Acts and Emancipation Proclamation in 1863, the war effectively ended slavery, even before ratification of the Thirteenth Amendment in December 1865 formally ended the legal institution throughout the United States.

Colonial America[edit]

In the early years of the Chesapeake Bay settlements, colonial officials found it difficult to attract and retain laborers under the harsh frontier conditions, and there was a high mortality rate.^[7] Most laborers came from Britain as indentured servants, having signed contracts of indenture to pay with work for their passage, their upkeep and training, usually on a farm, the colonies had agricultural economies. These indentured servants were young people who intended to become permanent residents; in some cases, convicted criminals were transported to the colonies as indentured servants, rather than being imprisoned. The indentured servants were not slaves, but were required to work for four to seven years in Virginia to pay the cost of their passage and maintenance.^[8] Many Germans, Scots-Irish, and Irish came to the colonies in the 18th century, settling in the backcountry of Pennsylvania and further south.^[7]

Destination of enslaved Africans (1519–1867)^[9]

Destination	Percentage
British mainland North America	3.7%
British Leeward Islands	3.2%
British Windward Islands and Trinidad (British 1797–1867)	3.8%
Jamaica (Spanish 1519–1655, British 1655–1867)	11.2%
Barbados (British)	5.1%
The Guianas (British, Dutch, French)	4.2%
French Windward Islands	3.1%
Saint-Domingue (French)	8.2%
Spanish mainland North and South America	4.4%
Spanish Caribbean islands	8.2%
Dutch Caribbean islands	1.3%
Northeast Brazil (Portuguese)	9.3%
Bahia (Portuguese)	10.7%
Southeast Brazil (Portuguese)	21.1%
Elsewhere in the Americas	1.1%
Africa	1.4%

The first 19 or so Africans to reach the English colonies arrived in Jamestown, Virginia in 1619, brought by Dutch traders who had seized them from a captured Spanish slave ship, the Spanish usually baptized slaves in Africa before embarking them. As English custom then considered baptized Christians exempt from slavery, colonists treated these Africans as indentured servants, and they joined about 1,000 English indentured servants already in the colony, the Africans were freed after a prescribed period and given the use of land and supplies by their former masters. The historian Ira Berlin noted that what he called the "charter generation" in the colonies was sometimes made up of mixed-race men (Atlantic Creoles) who were indentured servants, and whose ancestry was African and Iberian, they were descendants of African women and Portuguese or Spanish men who worked in African ports as traders or facilitators in the slave trade. For example, Anthony Johnson arrived in Virginia in 1621 from Angola as an indentured servant; he became free and a property owner, eventually buying and owning slaves himself. The transformation of the social status of Africans, from indentured servitude to slaves in a racial caste which they could not leave or escape, happened gradually.

There were no laws regarding slavery early in Virginia's history. But, in 1640, a Virginia court sentenced John Punch, an African, to slavery after he attempted to flee his service,^[10] the two whites with whom he fled were sentenced only to an additional year of their indenture, and three years' service to the colony.^[11] This marked the first legal sanctioning of slavery in the English colonies and was one of the first legal distinctions made between Europeans and Africans.^[10][12]

Enslaved people placed on ships for importation to those regions that are part of the present-day United States^[13]

Date	Numbers
1620–1650	824
1651–1675	0
1676–1700	3,327
1701–1725	3,277
1726–1750	34,004
1751–1775	84,580
1776–1800	67,443
1801–1825	109,545
1826–1850	1,850
1851–1866	476
Total	305,326

In 1641, Massachusetts became the first colony to authorize slavery through enacted law.^[14] Massachusetts passed the Body of Liberties, which prohibited slavery in many instances, but did allow for three legal bases of slavery.^[14] Slaves could be held if they were captives of war, if they sold themselves into slavery or were purchased from elsewhere, or if they were sentenced to slavery as punishment by the governing authority,^[14] the Body of Liberties used the word "strangers" to refer to people bought and sold as slaves; they were generally not English subjects. Colonists came to equate this term with Native Americans and Africans.^[15]

In 1654, John Casor, a black indentured servant in colonial Virginia, was the first man to be declared a slave in a civil case, he had claimed to an officer that his master, Anthony Johnson, himself a free black, had held him past his indenture term. A neighbor, Robert Parker told Johnson that if he did not release Casor, Parker would testify in court to this fact. Under local laws, Johnson was at risk for losing some of his headright lands for violating the terms of indenture. Under duress, Johnson freed Casor. Casor entered into a seven years' indenture with Parker. Feeling cheated, Johnson sued Parker to repossess Casor. A Northampton County, Virginia court ruled for Johnson, declaring that Parker illegally was detaining Casor from his rightful master who legally held him "for the duration of his life".^[16]

During the colonial period, the status of slaves was affected by interpretations related to the status of foreigners in England. England had no system of naturalizing immigrants to its island or its colonies, since persons of African origins were not English subjects by birth, they were among those peoples considered foreigners and generally outside English common law. The colonies struggled with how to classify people born to foreigners and subjects; in 1656 Virginia, Elizabeth Key Grinstead, a mixed-race woman, successfully gained her freedom and that of her son in a challenge to her status by making her case as the baptized Christian daughter of the free Englishman Thomas Key. Her attorney was an English subject, which may have helped her case. (He was also the father of her mixed-race son, and the couple married after Key was freed.)^[17]

Shortly after the Elizabeth Key trial and similar challenges, in 1662 the Virginia royal colony approved a law adopting the principle of partus sequitur ventrem (called partus, for short), stating that any children born in the colony would take the status of the mother. A child of an enslaved mother would be born into slavery, regardless if the father were a freeborn Englishman or Christian, this was a reversal of common law practice in England, which ruled that children of English subjects took the status of the father. The change institutionalized the skewed power relationships between slaveowners and slave women, freed the white men from the legal responsibility to acknowledge or financially support their mixed-race children, and somewhat confined the open scandal of mixed-race children and miscegenation to within the slave quarters.

The Virginia Slave codes of 1705 further defined as slaves those people imported from nations that were not Christian. Native Americans who were sold to colonists by other Native Americans (from rival tribes), or captured by Europeans during village raids, were also defined as slaves.^[18] This codified the earlier principle of non-Christian foreigner enslavement.

In 1735, the Georgia Trustees enacted a law to prohibit slavery in the new colony, which had been established in 1733 to enable the "worthy poor" as well as persecuted European Protestants to have a new start. Slavery was then legal in the other twelve English colonies. Neighboring South Carolina had an economy based on the use of enslaved labor, the Georgia Trustees wanted to eliminate the risk of slave rebellions and make Georgia better able to defend against attacks from the Spanish to the south, who offered freedom to escaped slaves. James Edward Oglethorpe was the driving force behind the colony, and the only trustee to reside in Georgia. He opposed slavery on moral grounds as well as for pragmatic reasons, and vigorously defended the ban on slavery against fierce opposition from Carolina slave merchants and land speculators.^[19][20][21]

The Protestant Scottish highlanders who settled what is now Darien, Georgia added a moral anti-slavery argument, which became increasingly rare in the South, in their 1739 "Petition of the Inhabitants of New Inverness".^[22] By 1750 Georgia authorized slavery in the state because they had been unable to secure enough indentured servants as laborers, as economic conditions in England began to improve in the first half of the 18th century, workers had no reason to leave, especially to face the risks in the colonies.

During most of the British colonial period, slavery existed in all the colonies. People enslaved in the North typically worked as house servants, artisans, laborers and craftsmen, with the greater number in cities. Many men worked on the docks and in shipping; in 1703, more than 42 percent of New York City households held slaves, the second-highest proportion of any city in the colonies after Charleston, South Carolina.^[23] But slaves were also used as agricultural workers in farm communities, including in areas of upstate New York and Long Island, Connecticut and New Jersey.

The South developed an agricultural economy dependent on commodity crops, its planters rapidly acquired a significantly higher number and proportion of slaves in the population overall, as its commodity crops were labor-intensive.^[24] Early on, enslaved people in the South worked primarily in agriculture, on farms and plantations growing indigo, rice, and tobacco; cotton did not become a major crop until after the American Revolution and after the 1790s. Before then long-staple cotton was cultivated primarily on the Sea Islands of Georgia and South Carolina.

The invention of the cotton gin in 1793 enabled the cultivation of short-staple cotton in a wide variety of mainland areas, leading in the 19th century to the development of large areas of the Deep South as cotton country. Tobacco was very labor-intensive, as was rice cultivation;^[25] in South Carolina in 1720, about 65% of the population consisted of enslaved people.^[26] Planters (defined by historians in the Upper South as those who held 20 enslaved people or more) used enslaved workers to cultivate commodity crops, they also worked in the artisanal trades on large plantations and in many southern port cities. Backwoods subsistence farmers, the later wave of settlers in the 18th century who settled along the Appalachian Mountains and backcountry, seldom held enslaved people.

Some of the British colonies attempted to abolish the international slave trade, fearing that the importation of new Africans would be disruptive. Virginia bills to that effect were vetoed by the British Privy Council. Rhode Island forbade the import of enslaved people in 1774. All of the colonies except Georgia had banned or limited the African slave trade by 1786; Georgia did so in 1798. Some of these laws were later repealed.^[27]

Fewer than 350,000 enslaved people were imported into the Thirteen Colonies and the U.S, constituting less than 5% of the twelve million enslaved people brought from Africa to the Americas, the great majority of enslaved Africans were transported to sugar colonies in the Caribbean and to Brazil. As life expectancy was short, their numbers had to be continually replenished. Life expectancy was much higher in the U.S., and the enslaved population was successful in reproduction. The number of enslaved people in the US grew rapidly, reaching 4 million by the 1860 Census, from 1770 until 1860, the rate of natural growth of North American enslaved people was much greater than for the population of any nation in Europe, and it was nearly twice as rapid as that of England.^[28]

Louisiana[edit]

Louisiana was founded as a French colony. Colonial officials in 1724 implemented Louis XIV of France's Code Noir, which regulated the slave trade and the institution of slavery in New France and French Caribbean colonies. This resulted in a different pattern of slavery in Louisiana, purchased in 1803, compared to the rest of the United States,^[29] as written, the Code Noir gave some rights to slaves, including the right to marry. Although it authorized and codified cruel corporal punishment against slaves under certain conditions, it forbade slave owners to torture them or to separate married couples (or to separate young children from their mothers), it also required the owners to instruct slaves in the Catholic faith.^[30][31][32]

Together with a more permeable historic French system that allowed certain rights to gens de couleur libres (free people of color), often born to white fathers and their mixed-race concubines, a far higher percentage of African Americans in Louisiana were free as of the 1830 census (13.2% in Louisiana compared to 0.8% in Mississippi, whose population was dominated by white Anglo-Americans. Most of Louisiana's "third class" of free people of color, situated between the native-born French and mass of African slaves, lived in New Orleans),^[30] the Louisiana free people of color were often literate, had gained education, and a significant number owned businesses, properties, and even slaves.^[31][32] The Code Noir forbade interracial marriages. However, interracial unions were widespread under the system known as placage. The mixed-race offspring (cf. creoles of color) from such unions were among those in the intermediate social caste of free people of color. The English colonies insisted on a binary system, in which mulatto and black slaves were treated equally under the law, and discriminated against equally if free, but many free people of African descent were mixed race.^[29][32]

When the US took over Louisiana, Americans from the Protestant South entered the territory and began to impose their norms, they officially discouraged interracial relationships (although white men continued to have unions with black women, both enslaved and free.) The Americanization of Louisiana gradually resulted in a binary system of race, causing free people of color to lose status as they were grouped with the slaves. They lost certain rights as they became classified by American whites as officially "black".^[29][33]

Revolutionary era[edit]

Origins and Percentages of Africans imported into British North America and Louisiana (1700–1820)[34][35]	Amount %
West-central Africa (Kongo, N. Mbundu, S. Mbundu)	26.1
Bight of Biafra (Igbo, Tikar, Ibibio, Bamileke, Bubi)	24.4
Sierra Leone (Mende, Temne)	15.8
Senegambia (Mandinka, Fula, Wolof)	14.5
Gold Coast (Akan, Fon)	13.1
Windward Coast (Mandé, Kru)	5.2
Bight of Benin (Yoruba, Ewe, Fon, Allada and Mahi)	4.3
Southeast Africa (Macua, Malagasy)	1.8

Slavery in Great Britain had never been authorized by statute; in 1772 it was made partially unenforceable at common law in Great Britain by a legal decision. The large British role in the international slave trade continued until 1807. Slavery flourished in most of Britain's colonies, with many wealthy slave owners living in England and holding considerable power, they were bought out in 1833 and the slaves were emancipated.^[36]

In early 1775 Lord Dunmore, royal governor of Virginia, wrote to Lord Dartmouth of his intent to free slaves owned by Patriots in case of rebellion.^[37] On November 7, 1775, Lord Dunmore issued Lord Dunmore's Proclamation which declared martial law^[38] and promised freedom for any slaves of American patriots who would leave their masters and join the royal forces. Slaves owned by Loyalist masters, however, were unaffected by Dunmore's Proclamation. About 1500 slaves owned by Patriots escaped and joined Dunmore's forces. Most died of disease before they could do any fighting. Three hundred of these freed slaves made it to freedom in Britain.^[39]

Many slaves used the very disruption of war to escape their plantations and fade into cities or woods, for instance, in South Carolina, nearly 25,000 slaves (30% of the total enslaved population) fled, migrated or died during the war. Throughout the South, losses of slaves were high, with many due to escapes.^[40] Slaves also escaped throughout New England and the mid-Atlantic, joining the British who had occupied New York.

In the closing months of the war, the British evacuated 20,000 freedmen from major coastal cities, transporting more than 3,000 for resettlement in Nova Scotia, where they were registered as Black Loyalists and eventually granted land, they transported others to the Caribbean islands, and some to England.

At the same time, the British were transporting Loyalists and their slaves, primarily to the Caribbean, but some to Nova Scotia, for example, over 5,000 enslaved Africans owned by Loyalists were transported in 1782 with their owners from Savannah to Jamaica and St. Augustine, Florida (then controlled by Britain). Similarly, over half of the black people evacuated in 1782 from Charleston by the British to the West Indies and Florida were slaves owned by white Loyalists.

Slaves and free blacks also fought on the side of rebels during the Revolutionary War. Washington authorized slaves to be freed who fought with the American Continental Army. Rhode Island started enlisting slaves in 1778, and promised compensation to owners whose slaves enlisted and survived to gain freedom,^[41][42] during the course of the war, about one fifth of the northern army was black.^[43] In 1781, Baron Closen, a German officer in the French Royal Deux-Ponts Regiment at the Battle of Yorktown, estimated the American army to be about one-quarter black,^[44] these men included both former slaves and free blacks.

In the 18th century, Britain became the world's largest slave trader. Starting in 1777, the Patriots outlawed the importation of slaves state by state, they all acted to end the international trade but it was later reopened in South Carolina and Georgia. In 1807 Congress acted on President Jefferson's advice and made importing slaves from abroad a federal crime.^[45]

Constitution of the United States[edit]

The Constitution of the United States took effect in 1789 and included several provisions regarding slavery. Section 9 of Article I forbade the Federal government from banning the importation of slaves before January 1, 1808, as a protection for slavery, the delegates approved Section 2 of Article IV, which prohibited states from freeing slaves who fled to them from another state, and required the return of chattel property to owners.

In a section negotiated by James Madison of Virginia, Section 2 of Article I designated "other persons" (slaves) to be added to the total of the state's free population, at the rate of three-fifths of their total number, to establish the state's official population for the purposes of apportionment of Congressional representation and federal taxation,^[46] the protections afforded slavery in the Constitution disproportionately strengthened the political power of Southern representatives, as three-fifths of the (non-voting) slave population was counted for Congressional apportionment.

In addition, many parts of the country were tied to the Southern economy, as the historian James Oliver Horton noted, prominent slaveholder politicians and the commodity crops of the South had a strong influence on United States politics and economy. Horton said,

in the 72 years between the election of George Washington and the election of Abraham Lincoln, 50 of those years [had] a slaveholder as president of the United States, and, for that whole period of time, there was never a person elected to a second term who was not a slaveholder.^[47]

This increased the power of southern states in Congress for decades, affecting national policies and legislation,^[47] the planter elite dominated the southern Congressional delegations and the United States presidency for nearly 50 years.^[47]

1790 to 1850[edit]

Abolition in the North[edit]

Beginning during the revolution and in the first two decades of the postwar era, every state in the North abolished slavery, ending with New Jersey in 1804, although in some cases existing slaves were not liberated immediately, these were the first abolitionist laws in the Atlantic World.^[48][49]

In Massachusetts, slavery was successfully challenged in court in 1783 in a freedom suit by Quock Walker; he said that slavery was in contradiction to the state's new constitution of 1780 providing for equality of men. Freed slaves were subject to racial segregation and discrimination in the North, and it took decades for some states to extend the franchise to them.^[50]

Most northern states passed legislation for gradual abolition, first freeing children born to slave mothers (and requiring them to serve lengthy indentures to their mother's masters, often into their 20s as young adults), as a result of this gradualist approach, New York did not fully free its last ex-slaves until 1827, Rhode Island had seven slaves still listed in the 1840 census. Pennsylvania's last ex-slaves were freed in 1847, Connecticut's in 1848, and New Hampshire and New Jersey in 1865.^[51]

None of the Southern states abolished slavery, but it was common for individual slaveholders in the South to free numerous slaves, often citing revolutionary ideals, in their wills. Methodist, Quaker and Baptist preachers traveled in the South, appealing to slaveholders to manumit their slaves. By 1810, the number and proportion of free blacks in the population of the United States had risen dramatically. Most free blacks resided in the North, but even in the Upper South, the proportion of free blacks went from less than one percent of all blacks to more than 10 percent, even as the total number of slaves was increasing through importation.^[52]

Through the Northwest Ordinance of 1787 under the Congress of the Confederation, slavery was prohibited in the territories northwest of the Ohio River; existing slaves were not freed for years, although they could no longer be sold. This was a compromise. Thomas Jefferson proposed in 1784 to end slavery in all the territories, but his bill lost in the Congress by one vote. The territories south of the Ohio River (and Missouri) had authorized slavery.^[53] Northerners predominated in the westward movement into the Midwestern territory after the American Revolution; as the states were organized, they voted to prohibit slavery in their constitutions when they achieved statehood: Ohio in 1803, Indiana in 1816, and Illinois in 1818. What developed was a Northern block of free states united into one contiguous geographic area that generally shared an anti-slavery culture, the exceptions were the areas along the Ohio River settled by Southerners, the southern portions of states such as Indiana, Ohio and Illinois. Residents of those areas generally shared in Southern culture and attitudes; in addition, these areas were devoted to agriculture longer than the industrializing northern parts of these states, and some farmers used slave labor. The emancipation of slaves in the North led to the growth in the population of northern free blacks, from several hundred in the 1770s to nearly 50,000 by 1810.^[54]

Agitation against slavery[edit]

Throughout the first half of the 19th century, abolitionism, a movement to end slavery, grew in strength; most abolitionist societies and supporters were in the North. They worked to raise awareness about the evils of slavery, and to build support for abolition.

This struggle took place amid strong support for slavery among white Southerners, who profited greatly from the system of enslaved labor, but slavery was entwined with the national economy; for instance, the banking, shipping and manufacturing industries of New York City all had strong economic interests in slavery, as did similar industries in other major port cities in the North. The northern textile mills in New York and New England processed Southern cotton and manufactured clothes to outfit slaves. By 1822 half of New York City's exports were related to cotton.^[55]

Slaveholders began to refer to slavery as the "peculiar institution" to differentiate it from other examples of forced labor, they justified it as less cruel than the free labor of the North.

The principal organized bodies to advocate abolition and anti-slavery reforms in the north were the Pennsylvania Abolition Society and the New York Manumission Society, before the 1830s the antislavery groups called for gradual emancipation.^[57] By the late 1820s, under the impulse of religious evangelicals, the sense emerged that owning slaves was a sin and the owner had to immediately free himself from this grave sin by emancipation.^[58]

Colonization movement[edit]

In the early part of the 19th century, other organizations were founded to take action on the future of black Americans, some advocated removing free black people from the United States to places where they would enjoy greater freedom; some endorsed colonization in Africa, while others advocated emigration. During the 1820s and 1830s, the American Colonization Society (ACS) was the primary organization to implement the "return" of black Americans to Africa,^[56] the ACS was made up mostly of Quakers and slaveholders, who found uneasy common ground in support of "repatriation". But, by this time, most black Americans were native-born and did not want to emigrate; rather, they wanted full rights in the United States, where their people had lived and worked for generations.

In 1822 the ACS established the colony of Liberia in West Africa,^[59] the ACS assisted thousands of freedmen and free blacks (with legislated limits) to emigrate there from the United States. Many white people considered this preferable to emancipation in the United States. Henry Clay, one of the founders and a prominent slaveholder politician from Kentucky, said that blacks faced

unconquerable prejudice resulting from their color, they never could amalgamate with the free whites of this country. It was desirable, therefore, as it respected them, and the residue of the population of the country, to drain them off.^[60]

After 1830, abolitionist and minister William Lloyd Garrison promoted emancipation, characterizing slaveholding as a personal sin, he demanded that slaveowners repent and start the process of emancipation. His position increased defensiveness on the part of some southerners, who noted the long history of slavery among many cultures. A few abolitionists, such as John Brown, favored the use of armed force to foment uprisings among the slaves, as he did at Harper's Ferry. Most abolitionists tried to raise public support to change laws and to challenge slave laws. Abolitionists were active on the lecture circuit in the North, and often featured escaped slaves in their presentations, the eloquent Frederick Douglass became an important abolitionist leader after escaping from slavery. Harriet Beecher Stowe's novel Uncle Tom's Cabin (1852) was an international bestseller and aroused popular sentiment against slavery. It also provoked the publication of numerous anti-Tom novels by Southerners in the years before the American Civil War.

Prohibiting international trade[edit]

While under the Constitution, Congress could not prohibit the import slave trade until 1808, the third Congress regulated it in the Slave Trade Act of 1794, which prohibited shipbuilding and outfitting for the trade. Subsequent acts in 1800 and 1803 sought to discourage the trade by limiting investment in import trading and prohibiting importation into states that had abolished slavery, which most in the North had by that time,^[61] the final Act Prohibiting Importation of Slaves was adopted in 1807, effective in 1808. However, illegal importation of African slaves (smuggling) was common.^[3]

After Great Britain and the United States outlawed the international slave trade in 1807, British slave trade suppression activities began in 1808 through diplomatic efforts and formation of the Royal Navy's West Africa Squadron, from 1819, they were assisted by forces from the United States Navy. With the Webster-Ashburton Treaty of 1842, the relationship with Britain was formalized, and the two countries jointly ran the Blockade of Africa with their navies.^[62]

Post-revolution Southern manumissions[edit]

Although Virginia, Maryland and Delaware were slave states, the latter two already had a high proportion of free blacks by the outbreak of war. Following the Revolution, the three legislatures made manumission easier, allowed by deed or will. Quaker and Methodist ministers particularly urged slaveholders to free their slaves, the number and proportion of freed slaves in these states rose dramatically until 1810. More than half of the number of free blacks in the United States were concentrated in the Upper South, the proportion of free blacks among the black population in the Upper South rose from less than one percent in 1792 to more than 10 percent by 1810.^[52] In Delaware, nearly 75 percent of blacks were free by 1810.^[63]

In the US as a whole, by 1810 the number of free blacks reached 186,446, or 13.5 percent of all blacks.^[64] After that period, few slaves were freed, as the development of cotton plantations featuring short-staple cotton in the Deep South drove up the internal demand for slaves in the domestic slave trade and high prices were paid.^[65]

Domestic slave trade and forced migration[edit]

The growing international demand for cotton led many plantation owners further west in search of suitable land; in addition, the invention of the cotton gin in 1793 enabled profitable processing of short-staple cotton, which could readily be grown in the uplands. The invention revolutionized the cotton industry by increasing fifty-fold the quantity of cotton that could be processed in a day, at the end of the War of 1812, fewer than 300,000 bales of cotton were produced nationally. By 1820 the amount of cotton produced had increased to 600,000 bales, and by 1850 it had reached 4,000,000. There was an explosive growth of cotton cultivation throughout the Deep South and greatly increased demand for slave labor to support it,^[66] as a result, manumissions decreased dramatically in the South.^[67]

Most of the slaves sold from the Upper South were from Maryland, Virginia, and the Carolinas, where changes in agriculture decreased the need for their labor and the demand for slaves. Before 1810, primary destinations for the slaves who were sold were Kentucky and Tennessee, but after 1810 Georgia, Alabama, Mississippi, Louisiana and Texas of the Deep South received the most slaves. This is where cotton became king.^[68] Kentucky and Tennessee joined the slave exporting states.

By 1815, the domestic slave trade had become a major economic activity in the United States; it lasted until the 1860s.^[69] Between 1830 and 1840 nearly 250,000 slaves were taken across state lines;^[69] in the 1850s more than 193,000 were transported, and historians estimate nearly one million in total took part in the forced migration of this new Middle Passage. By 1860 the slave population in the United States had reached 4 million.^[69] Of all 1,515,605 free families in the fifteen slave states in 1860, nearly 400,000 held slaves (roughly one in four, or 25%),^[70] amounting to 8% of all American families.^[71]

The historian Ira Berlin called this forced migration of slaves the "Second Middle Passage", because it reproduced many of the same horrors as the Middle Passage (the name given to the transportation of slaves from Africa to North America), these sales of slaves broke up many families and caused much hardship. Characterizing it as the "central event" in the life of a slave between the American Revolution and the Civil War, Berlin wrote that whether slaves were directly uprooted or lived in fear that they or their families would be involuntarily moved, "the massive deportation traumatized black people, both slave and free."^[72] Individuals lost their connection to families and clans. Added to the earlier colonists combining slaves from different tribes, many ethnic Africans lost their knowledge of varying tribal origins in Africa. Most were descended from families who had been in the United States for many generations.^[69]

In the 1840s, almost 300,000 slaves were transported, with Alabama and Mississippi receiving 100,000 each, during each decade between 1810 and 1860, at least 100,000 slaves were moved from their state of origin. In the final decade before the Civil War, 250,000 were moved. Michael Tadman wrote in Speculators and Slaves: Masters, Traders, and Slaves in the Old South (1989) that 60–70% of inter-regional migrations were the result of the sale of slaves. In 1820 a child in the Upper South had a 30% chance of being sold south by 1860,^[73] the death rate for the slaves on their way to their new destination across the American South was less than that suffered by captives shipped across the Atlantic Ocean, but mortality was higher than the normal death rate.

Slave traders transported two-thirds of the slaves who moved west.^[74] Only a minority moved with their families and existing master. Slave traders had little interest in purchasing or transporting intact slave families; in the early years, planters demanded only the young male slaves needed for heavy labor. Later, in the interest of creating a "self-reproducing labor force", planters purchased nearly equal numbers of men and women. Berlin wrote:

The internal slave trade became the largest enterprise in the South outside the plantation itself, and probably the most advanced in its employment of modern transportation, finance, and publicity, the slave trade industry developed its own unique language, with terms such as "prime hands, bucks, breeding wenches, and "fancy girls" coming into common use.^[75]

The expansion of the interstate slave trade contributed to the "economic revival of once depressed seaboard states" as demand accelerated the value of slaves who were subject to sale.^[76]

Some traders moved their "chattels" by sea, with Norfolk to New Orleans being the most common route, but most slaves were forced to walk overland. Others were shipped downriver from such markets as Louisville on the Ohio River, and Natchez on the Mississippi. Traders created regular migration routes served by a network of slave pens, yards, and warehouses needed as temporary housing for the slaves; in addition, other vendors provided clothes, food, and supplies for slaves. As the trek advanced, some slaves were sold and new ones purchased. Berlin concluded, "In all, the slave trade, with its hubs and regional centers, its spurs and circuits, reached into every cranny of southern society. Few southerners, black or white, were untouched."^[77]

Once the trip ended, slaves faced a life on the frontier significantly different from most labor in the Upper South. Clearing trees and starting crops on virgin fields was harsh and backbreaking work. A combination of inadequate nutrition, bad water, and exhaustion from both the journey and the work weakened the newly arrived slaves and produced casualties. New plantations were located at rivers' edges for ease of transportation and travel. Mosquitoes and other environmental challenges spread disease, which took the lives of many slaves. They had acquired only limited immunities to lowland diseases in their previous homes, the death rate was so high that, in the first few years of hewing a plantation out of the wilderness, some planters preferred whenever possible to use rented slaves rather than their own.^[78]

The harsh conditions on the frontier increased slave resistance and led owners and overseers to rely on violence for control. Many of the slaves were new to cotton fields and unaccustomed to the "sunrise-to-sunset gang labor" required by their new life. Slaves were driven much harder than when they had been in growing tobacco or wheat back east. Slaves had less time and opportunity to improve the quality of their lives by raising their own livestock or tending vegetable gardens, for either their own consumption or trade, as they could in the east.^[79]

In Louisiana, French colonists had established sugar cane plantations and exported sugar as the chief commodity crop, after the Louisiana Purchase in 1803, Americans entered the state and joined the sugar cultivation. Between 1810 and 1830, planters bought slaves from the North and the number of slaves increased from less than 10,000 to more than 42,000. Planters preferred young males, who represented two-thirds of the slave purchases. Dealing with sugar cane was even more physically demanding than growing cotton, the largely young, unmarried male slave force made the reliance on violence by the owners "especially savage".^[80]

New Orleans became nationally important as a slave market and port, as slaves were shipped from there upriver by steamboat to plantations on the Mississippi River; it also sold slaves who had been shipped downriver from markets such as Louisville. By 1840, it had the largest slave market in North America, it became the wealthiest and the fourth-largest city in the nation, based chiefly on the slave trade and associated businesses.^[81] The trading season was from September to May, after the harvest.^[82]

Slave traders were men of low reputation, even in the South; in the 1828 presidential election, candidate Andrew Jackson was strongly criticized by opponents as a slave trader who transacted in slaves in defiance of modern standards or morality.^[83]

Treatment[edit]

The treatment of slaves in the United States varied widely depending on conditions, times and places, the power relationships of slavery corrupted many whites who had authority over slaves, with children showing their own cruelty. Masters and overseers resorted to physical punishments to impose their wills. Slaves were punished by whipping, shackling, hanging, beating, burning, mutilation, branding and imprisonment. Punishment was most often meted out in response to disobedience or perceived infractions, but sometimes abuse was carried out to re-assert the dominance of the master or overseer of the slave.^[84] Treatment was usually harsher on large plantations, which were often managed by overseers and owned by absentee slaveholders, conditions permitting abuses.

William Wells Brown, who escaped to freedom, reported that on one plantation, slave men were required to pick 80 pounds per day of cotton, while women were required to pick 70 pounds; if any slave failed in his or her quota, they were subject to whip lashes for each pound they were short. The whipping post stood next to the cotton scales.^[85] A New York man who attended a slave auction in the mid-19th century reported that at least three-quarters of the male slaves he saw at sale had scars on their backs from whipping.^[86] By contrast, small slave-owning families had closer relationships between the owners and slaves; this sometimes resulted in a more humane environment but was not a given.^[87]

Historian Lawrence M. Friedman wrote: "Ten Southern codes made it a crime to mistreat a slave. … Under the Louisiana Civil Code of 1825 (art. 192), if a master was "convicted of cruel treatment," the judge could order the sale of the mistreated slave, presumably to a better master."^[88] Masters and overseers were seldom prosecuted under these laws.

According to Adalberto Aguirre, there were 1,161 slaves executed in the U.S. between the 1790s and 1850s.^[89] Quick executions of innocent slaves as well as suspects typically followed any attempted slave rebellions, as white militias overreacted with widespread killings that expressed their fears of rebellions, or suspected rebellions.

Although most slaves had lives that were very restricted in terms of their movements and agency, exceptions existed to virtually every generalization; for instance, there were also slaves who had considerable freedom in their daily lives: slaves allowed to rent out their labor and who might live independently of their master in cities, slaves who employed white workers, and slave doctors who treated upper-class white patients.^[90] After 1820, in response to the inability to import new slaves from Africa and in part to abolitionist criticism, some slaveholders improved the living conditions of their slaves, to encourage them to be productive and to try to prevent escapes,^[91] it was part of a paternalistic approach in the antebellum era that was encouraged by ministers trying to use Christianity to improve the treatment of slaves. Slaveholders published articles in southern agricultural journals to share best practices in treatment and management of slaves; they intended to show that their system was better than the living conditions of northern industrial workers.

Medical care for slaves was limited in terms of the medical knowledge available to anyone, it was generally provided by other slaves or by slaveholders' family members. Many slaves possessed medical skills needed to tend to each other, and used folk remedies brought from Africa, they also developed new remedies based on American plants and herbs.^[93]

According to Andrew Fede, a master could be held criminally liable for killing a slave only if the slave he killed was "completely submissive and under the master's absolute control",^[94] for example, in 1791 the North Carolina legislature defined the willful killing of a slave as criminal murder, unless done in resisting or under moderate correction (that is, corporal punishment).^[95]

Because of the power relationships at work, slave women in the United States were at high risk for rape and sexual abuse.^[96][97] Many slaves fought back against sexual attacks, and some died resisting. Others carried psychological and physical scars from the attacks.^[98] Sexual abuse of slaves was partially rooted in a patriarchal Southern culture which treated black women as property or chattel.^[97] Southern culture strongly policed against sexual relations between white women and black men on the purported grounds of racial purity but, by the late 18th century, the many mixed-race slaves and slave children showed that white men had often taken advantage of slave women.^[97] Wealthy planter widowers, notably such as John Wayles and his son-in-law Thomas Jefferson, took slave women as concubines; each had six children with his partner: Elizabeth Hemings and her daughter Sally Hemings (the half-sister of Jefferson's late wife), respectively. Both Mary Chesnut and Fanny Kemble, wives of planters, wrote about this issue in the antebellum South in the decades before the Civil War. Sometimes planters used mixed-race slaves as house servants or favored artisans because they were their children or other relatives,^[99] as a result of centuries of slavery and such relationships, DNA studies have shown that the vast majority of African Americans also have historic European ancestry, generally through paternal lines.^[100][101]

While slaves' living conditions were poor by modern standards, Robert Fogel argued that all workers, free or slave, during the first half of the 19th century were subject to hardship.^[102]

Slave codes[edit]

To help regulate the relationship between slave and owner, including legal support for keeping the slave as property, states established slave codes, most based on laws existing since the colonial era, the code for the District of Columbia defined a slave as "a human being, who is by law deprived of his or her liberty for life, and is the property of another".^[103]

While each state had its own slave code, many concepts were shared throughout the slave states.^[104] According to the slave codes, some of which were passed in reaction to slave rebellions, teaching a slave to read or write was illegal, this prohibition was unique to American slavery, believed to reduce slaves forming aspirations that could lead to escape or rebellion.^[105] Informal education occurred when white children taught slave companions what they were learning; in other cases, adult slaves learned from free artisan workers, especially if located in cities, where there was more freedom of movement.

In Alabama, slaves were not allowed to leave their master's premises without written consent or passes, this was a common requirement in other states as well, and locally run patrols (known to slaves as pater rollers) often checked the passes of slaves who appeared to be away from their plantations. In Alabama slaves were prohibited from trading goods among themselves; in Virginia, a slave was not permitted to drink in public within one mile of his master or during public gatherings. Slaves were not permitted to carry firearms in any of the slave states.

Slaves were generally prohibited by law from associating in groups, with the exception of worship services (a reason why the Black church is such a notable institution in black communities today). Following Nat Turner's rebellion in 1831, which raised white fears throughout the South, some states also prohibited or restricted religious gatherings of slaves, or required that they be officiated by white men. Planters feared that group meetings would facilitate communication among slaves that could lead to rebellion.^[106] Slaves held private, secret "brush meetings" in the woods.

In Ohio, an emancipated slave was prohibited from returning to the state in which he or she had been enslaved. Other northern states discouraged the settling of free blacks within their boundaries. Fearing the influence of free blacks, Virginia and other southern states passed laws to require blacks who had been freed to leave the state within a year (or sometimes less time) unless granted a stay by an act of the legislature.

High demand and smuggling[edit]

The United States Constitution, adopted in 1787, prevented Congress from completely banning the importation of slaves until 1808, although Congress regulated it in the Slave Trade Act of 1794, and in subsequent Acts in 1800 and 1803.^[61] After the Revolution, numerous states individually passed laws against importing slaves. By contrast, the states of Georgia and South Carolina reopened their trade due to demand by their upland planters, who were developing new cotton plantations: Georgia from 1800 until December 31, 1807, and South Carolina from 1804; in that period, Charleston traders imported about 75,000 slaves, more than were brought to South Carolina in the 75 years before the Revolution.^[107] Approximately 30,000 were imported to Georgia.

By January 1, 1808, when Congress banned further imports, South Carolina was the only state that still allowed importation of slaves. Congress allowed continued trade only in slaves who were descendants of those currently in the United States; in addition, US citizens could participate financially in the international slave trade and the outfitting of ships for that trade. The domestic slave trade became extremely profitable as demand rose with the expansion of cultivation in the Deep South for cotton and sugar cane crops. Slavery in the United States became, more or less, self-sustaining by natural increase among the current slaves and their descendants.

Despite the ban, slave imports continued through smugglers bringing in slaves past the U.S. Navy's African Slave Trade Patrol to South Carolina, and overland from Texas and Florida, both under Spanish control.^[108] Congress increased the punishment associated with importing slaves, classifying it in 1820 as an act of piracy, with smugglers subject to harsh penalties, including death if caught, after that, "it is unlikely that more than 10,000 [slaves] were successfully landed in the United States."^[109] But, some smuggling of slaves into the United States continued until just before the start of the Civil War.

War of 1812[edit]

During the War of 1812, British Royal Navy commanders of the blockading fleet, based at the Bermuda dockyard, were instructed to offer freedom to defecting American slaves, as the Crown had during the Revolutionary War. Thousands of escaped slaves went over to the Crown with their families. Men were recruited into the Corps of Colonial Marines on occupied Tangier Island, in the Chesapeake Bay.

The freedmen fought for Britain throughout the Atlantic campaign, including the attack on Washington D.C. and the Louisiana Campaign. Seven hundred of these ex-marines were granted land (they reportedly organised themselves in villages along the lines of their military companies).^{[citation needed]} Many other freed American slaves were recruited directly into existing West Indian regiments, or newly created British Army units^{[citation needed]} The British later resettled a few thousand freed slaves at Nova Scotia, as they had for freedmen after the Revolution,^[110] some of the earlier freedmen had migrated to Sierra Leone in the late 18th century, when it was established as a British colony. Descendants have established the Black Loyalist Heritage Museum and website.^[110]

Slaveholders, primarily in the South, had considerable "loss of property" as thousands of slaves escaped to British lines or ships for freedom, despite the difficulties,^[110] the planters' complacency about slave "contentment" was shocked by seeing that slaves would risk so much to be free.^[110] Afterward, when some freed slaves had been settled at Bermuda, slaveholders such as Major Pierce Butler of South Carolina tried to persuade them to return to the United States, to no avail.

The Americans protested that Britain's failure to return all slaves violated the Treaty of Ghent, after arbitration by the Tsar of Russia, the British paid $1,204,960 in damages (about $25.5 million in today's money) to Washington, which reimbursed the slaveowners.^[111][112]

Religion[edit]

Prior to the American Revolution, masters and revivalists spread Christianity to slave communities, supported by the Society for the Propagation of the Gospel. In the First Great Awakening of the mid-18th century, Baptists and Methodists from New England preached a message against slavery, encouraged masters to free their slaves, converted both slaves and free blacks, and gave them active roles in new congregations.^[113] The first independent black congregations were started in the South before the Revolution, in South Carolina and Georgia.

Over the decades and with the growth of slavery throughout the South, Baptist and Methodist ministers gradually changed their messages to accommodate the institution, after 1830, white Southerners argued for the compatibility of Christianity and slavery, with a multitude of both Old and New Testament citations.^[114] They promoted Christianity as encouraging better treatment of slaves and argued for a paternalistic approach; in the 1840s and 1850s, the issue of accepting slavery split the nation's largest religious denominations (the Methodist, Baptist and Presbyterian churches) into separate Northern and Southern organizations.^[115]

Southern slaves generally attended their masters' white churches, where they often outnumbered the white congregants, they were usually permitted to sit only in the back or in the balcony. They listened to white preachers, who emphasized the obligation of slaves to keep in their place, and acknowledged the slave's identity as both person and property.^[114] Preachers taught the masters responsibility and the concept of appropriate paternal treatment, using Christianity to improve conditions for slaves, and to treat them "justly and fairly" (Col. 4:1). This included masters having self-control, not disciplining under anger, not threatening, and ultimately fostering Christianity among their slaves by example.^[114]

Slaves also created their own religious observances, meeting alone without the supervision of their white masters or ministers, the larger plantations with groups of slaves numbering twenty, or more, tended to be centers of nighttime meetings of one or several plantation slave populations.^[114] These congregations revolved around a singular preacher, often illiterate with limited knowledge of theology, who was marked by his personal piety and ability to foster a spiritual environment. African Americans developed a theology related to Biblical stories having the most meaning for them, including the hope for deliverance from slavery by their own Exodus. One lasting influence of these secret congregations is the African-American spiritual.^[116]

Slave rebellions[edit]

Historians in the 20th century identified 250 to 311 slave uprisings in U.S. and colonial history.^[117] Post independence, after 1776 rebellions include:

• Gabriel's conspiracy (1800)
• Igbo Landing slave escape (1803)
• Chatham Manor Rebellion (1805)
• 1811 German Coast Uprising, (1811)^[118]
• George Boxley Rebellion (1815)
• Denmark Vesey's conspiracy (1822)
• Nat Turner's slave rebellion (1831)
• Black Seminole Slave Rebellion (1835–1838) ^[119]
• Amistad seizure (1839)^[120]
• Creole case (1841)
• 1842 Slave Revolt in the Cherokee Nation^[121]

In 1831, Nat Turner, a literate slave who claimed to have spiritual visions, organized a slave rebellion in Southampton County, Virginia; it was sometimes called the Southampton Insurrection. Turner and his followers killed nearly 60 white inhabitants, mostly women and children. Many of the men in the area were attending a religious event in North Carolina.^[122] Eventually Turner was captured with 17 other rebels, who were subdued by the militia.^[122] Turner and his followers were hanged, and Turner's body was flayed; in a frenzy of fear and retaliation, the militia killed more than 100 slaves who had not been involved in the rebellion. Planters whipped hundreds of innocent slaves to ensure resistance was quelled.^[122]

This rebellion prompted Virginia and other slave states to pass more restrictions on slaves and free people of color, controlling their movement and requiring more white supervision of gatherings; in 1835 North Carolina withdrew the franchise for free people of color, and they lost their vote.

Anti-literacy[edit]

See also: Anti-literacy law

Across the South, white legislatures enacted harsh new laws to curtail the already limited rights of African Americans. Virginia prohibited blacks, free or slave, from practicing preaching, prohibited blacks from owning firearms, and forbade anyone to teach slaves or free blacks how to read,^[122] it specified heavy penalties for both student and teacher if slaves were educated, including whippings or jail.^[123]

[E]very assemblage of negroes for the purpose of instruction in reading or writing, or in the night time for any purpose, shall be an unlawful assembly. Any justice may issue his warrant to any office or other person, requiring him to enter any place where such assemblage may be, and seize any negro therein; and he, or any other justice, may order such negro to be punished with stripes.^[124]

Unlike in the South, slave owners in Utah were required to send their slaves to school.^[125] Black slaves did not have to spend as much time in school as Indian slaves.^[126]

Economics[edit]

Eli Whitney's invention of the cotton gin in 1793, made processing of short-staple cotton profitable, and it was cultivated throughout the South to satisfy US and international demand. Statistical data shows that while less than 10% of the inhabitants of the North were slaves, by 1790, Virginia held 44% of the total slave population,^[127] it was common in agriculture, with a more massive presence in the South – the region where climate was more propitious for widescale agricultural activity. Some economists and historians regard slavery as a profitable system, they do not fully account for the government costs necessary to maintain the institution, nor for human suffering. The transition from indentured servants to slaves is cited to show that slaves offered greater profits to their owners. Thus, it is the near universal consensus among economic historians and economists that slavery was not "a system irrationally kept in existence by plantation owners who failed to perceive or were indifferent to their best economic interests",^[128] the relative price of slaves and indentured servants in the antebellum period did decrease. Indentured servants became more costly with the increase in the demand of skilled labor in England,^[129] at the same time, slaves were mostly supplied from within the United States and thus language was not a barrier, and the cost of transporting slaves from one state to another was relatively low. In the decades preceding the civil war, the United States experienced a rapid natural increase of black population,^[130] the slave population multiplied nearly fourfold between 1810 and 1860, although the international slave trade was banned in 1808.^[127] Thus, it is also the universal consensus among modern economic historians and economists that slavery in the United States was not "economically moribund on the eve of the Civil War".^[131]

Robert Fogel and Stanley Engerman, in their 1974 book Time on the Cross, argued that the rate of return of slavery at the market price was close to 10 percent, a number close to investment in other assets. Fogel's 1989 work, Without Consent or Contract The Rise and Fall of American Slavery, elaborated on the moral indictment of slavery which ultimately led to its abolition.

Efficiency of slaves[edit]

Scholars disagree on how to quantify efficiency of slavery; in Time on the Cross, Fogel and Engerman equate efficiency to total factor productivity (TFP)—the output per average unit of input on a farm. Using this measurement, southern farms that enslaved black people using the Gang System were 35% more efficient than Northern farms which used free labor. Under the Gang System, groups of slaves perform synchronized tasks under the constant vigilance of an overseer, each group was like a part of a machine. If perceived to be working below his capacity, a slave could be punished. Fogel argues that this kind of negative enforcement was not frequent and that slaves and free laborers had similar quality of life; however, there is controversy on this last point.^[132] A critique of Fogel and Engerman's view was published by Paul A. David in 1976;^[133] in 1995, a random survey of 178 members of the Economic History Association sought to study the views of economists and economic historians on the debate. The study found that 72 percent of economists and 65 percent of economic historians would generally agree that "Slave agriculture was efficient compared with free agriculture. Economies of scale, effective management, and intensive utilization of labor and capital made southern slave agriculture considerably more efficient than nonslave southern farming." 48 percent of the economists agreed without provisos, while 24 percent agreed when provisos were included in the statement. On the other hand, 58 percent of economic historians and 42 percent of economists disagreed with Fogel and Engerman's "proposition that the material (not psychological) conditions of the lives of slaves compared favorably with those of free industrial workers in the decades before the Civil War".^[134]

Prices of slaves[edit]

Controlling for inflation, prices of slaves rose dramatically in the six decades prior to Civil War, reflecting demand due to commodity cotton, as well as use of slaves in shipping and industry, although the prices of slaves relative to indentured servants declined, both got more expensive. Cotton production was rising and relied on the use of slaves to yield high profits. Fogel and Engeman initially argued that if the Civil War had not happened, the slave prices would have increased even more, an average of more than 50 percent by 1890.^[132]:96

Prices reflected the characteristics of the slave—such factors as sex, age, nature, and height were all taken into account to determine the price of a slave, over the life-cycle, the price of enslaved women was higher than their male counterparts up to puberty age, as they would likely bear children and produce more slaves, in addition to serving as laborers. Men around the age of 25 were the most valued, as they were at the highest level of productivity and still had a considerable life-span. If slaves had a history of fights or escapes, their price was lowered reflecting what planters believed was risk of repeating such behavior. Slave traders and buyers would examine a slave's back for whipping scars—a large number of injuries would be seen as evidence of laziness or rebelliousness, rather than the previous master's brutality, and would lower the slave's price^[86] Taller male slaves were priced at a higher level, as height was viewed as a proxy for fitness and productivity.^[132]

The conditions of the market led to shocks in the supply and demand of slaves, which in turn changed prices, for instance, slaves became more expensive after the decrease in supply caused by the ban on importation of slaves in 1808. The market for the products of their work also affected slaves' economic value: demand for slaves fell with the price of cotton in 1840. Anticipation of changes also had a huge influence on prices, as the civil war progressed, there was great doubt that slavery would continue to be legal, and prime males in New Orleans were sold at $1,116 by 1862 as opposed to $1,381 in 1861.^[135]

Effects on Southern economic development[edit]

While slavery brought profits in the short run, discussion continues on the economic benefits of slavery in the long-run; in 1995, a random anonymous survey of 178 members of the Economic History Association found that out of the 40 propositions about American economic history that were surveyed, the propositions most disputed by economic historians and economists were those surrounding the postbellum economy of the American South. The only exception was the proposition initially put forward by historian Gavin Wright^[136] that the "modern period of the South's economic convergence to the level of the North only began in earnest when the institutional foundations of the southern regional labor market were undermined, largely by federal farm and labor legislation dating from the 1930s." 62 percent of economists (24 percent with and 38 percent without provisos) and 73 percent of historians (23 percent with and 50 percent without provisos) agreed with this statement.^[137] Wright has also argued that the private investment of monetary resources in the cotton industry, among others, delayed development in the South of commercial and industrial institutions. There was little public investment in railroads or other infrastructure. Wright argues that agricultural technology was far more developed in the South, representing an economic advantage of the South over the North of the United States.^[138]

In Democracy in America, Alexis de Tocqueville noted that "the colonies in which there were no slaves became more populous and more rich than those in which slavery flourished."^[139] Economists Peter H. Lindert and Jeffrey G. Williamson, in a pair of articles published in 2012 and 2013, found that, despite the American South initially having per capita income roughly double that of the North in 1774, incomes in the South had declined 27% by 1800 and continued to decline over the next four decades, while the economies in New England and the Mid-Atlantic states vastly expanded. By 1840, per capita income in the South was well behind the Northeast and the national average. (Note: This is also true of contemporary incomes in the United States in the early 21st century.)^[140][141]

Lindert and Williamson argue that this antebellum period is exemplary of what economists Daron Acemoğlu, Simon Johnson, and James A. Robinson call "a reversal of fortune".^[142] Economist Thomas Sowell, in his essay "The Real History of Slavery," confirms the observation made by de Tocqueville, by comparing slavery in Brazil to slavery in the United States, he notes that slave societies reflected similar economic trends in those and other parts of the world, suggesting that the trend Lindert and Williamson identify may have continued until the American Civil War:

Both in Brazil and in the United States—the countries with the two largest slave populations in the Western Hemisphere—the end of slavery found the regions in which slaves had been concentrated poorer than other regions of these same countries, for the United States, a case could be made that this was due to the Civil War, which did so much damage to the South, but no such explanation would apply to Brazil, which fought no Civil War over this issue. Moreover, even in the United States, the South lagged behind the North in many ways even before the Civil War.

Although slavery in Europe died out before it was abolished in the Western Hemisphere, as late as 1776 slavery had not yet died out all across the continent when Adam Smith wrote in The Wealth of Nations that it still existed in some eastern regions. But, even then, Eastern Europe was much poorer than Western Europe, the slavery of North Africa and the Middle East, over the centuries, took more slaves from sub-Saharan Africa than the Western Hemisphere did… But these remained largely poor countries until the discovery and extraction of their vast oil deposits.^[143]

Sowell also notes in Ethnic America: A History, citing historians Clement Eaton and Eugene Genovese, that three-quarters of Southern white families owned no slaves at all.^[144] Most slaveholders lived on farms rather than plantations,^[145] and few plantations were as large as the fictional ones depicted in Gone with the Wind;^[146] in "The Real History of Slavery," Sowell draws the following conclusion regarding the macroeconomic value of slavery:

In short, even though some individual slaveowners grew rich and some family fortunes were founded on the exploitation of slaves, that is very different from saying that the whole society, or even its non-slave population as a whole, was more economically advanced than it would have been in the absence of slavery. What this means is that, whether employed as domestic servants or producing crops or other goods, millions suffered exploitation and dehumanization for no higher purpose than the...aggrandizement of slaveowners.^[147]

1850s[edit]

Because of the three-fifths compromise in the U.S. Constitution, in which slaves counted in the calculation of how many representatives a state had in Congress (though only three-fifths as much as a free person), the planter class had long held power in Congress out of proportion to the total number of free people in the US population as a whole.

In 1850, Congress passed the Fugitive Slave Act, which required law enforcement and citizens of free states to cooperate in the capture and return of slaves, this met with considerable overt and covert resistance in free states and cities such as Philadelphia, New York and Boston. Refugees from slavery continued to flee the South across the Ohio River and other parts of the Mason–Dixon line dividing North from South, to the North and Canada via the Underground Railroad, some white northerners helped hide former slaves from their former owners or helped them reach freedom in Canada.

As part of the Compromise of 1850, Congress abolished the domestic slave trade (though not the legality of slavery) in the District of Columbia, after 1854, Republicans argued that the Slave Power, especially the pro-slavery Democratic Party, controlled two of the three branches of the Federal government.

The abolitionists, realizing that the total elimination of slavery was, as an immediate goal, unrealistic, had worked to prevent expansion of slavery into the new states formed out of the Western territories, the Missouri Compromise, the Compromise of 1850, and the Bleeding Kansas crisis dealt with whether new states would be slave or free, or how that was to be decided. Both sides were anxious about effects of these decisions on the balance of power in the Senate.

After the passage of the Kansas–Nebraska Act in 1854, border fighting broke out in Kansas Territory, where the question of whether it would be admitted to the Union as a slave or free state was left to the inhabitants. Migrants from free and slave states moved into the territory to prepare for the vote on slavery. Abolitionist John Brown was active in the fighting in "Bleeding Kansas," but so too were many white southerners who opposed abolition.

Abraham Lincoln's and the Republicans' political platform in 1860 was to stop slavery's expansion. Historian James McPherson says that in a famous speech in 1858, Lincoln said American republicanism can be purified by restricting the further expansion of slavery as the first step to putting it on the road to 'ultimate extinction.' Southerners took Lincoln at his word. When he won the presidency they left the union to escape the 'ultimate extension' of slavery."^[148]

Freedom suits and Dred Scott[edit]

With the development of slave and free states after the American Revolution, and far-flung commercial and military activities, new situations arose in which slaves might be taken by masters into free states. Most free states not only prohibited slavery, but ruled that slaves brought and kept there illegally could be freed, such cases were sometimes known as transit cases.

Dred Scott and his wife Harriet Scott each sued for freedom in St. Louis after the death of their master, based on their having been held in a free territory (the northern part of the Louisiana Purchase from which slavery was excluded under the terms of the Missouri Compromise). (Later the two cases were combined under Dred Scott's name.) Scott filed suit for freedom in 1846 and went through two state trials, the first denying and the second granting freedom to the couple (and, by extension, their two daughters, who had also been held illegally in free territories). For 28 years, Missouri state precedent had generally respected laws of neighboring free states and territories, ruling for freedom in such transit cases where slaves had been held illegally in free territory, but in the Dred Scott case, the State Supreme Court ruled against the slaves, saying that "times were not what they once were".^{[citation needed]}

After Scott and his team appealed the case to the U.S. Supreme Court, the slaveowning Supreme Court Justice Roger B. Taney denied Scott his freedom in a sweeping decision. The 1857 decision, decided 7–2, held that a slave did not become free when taken into a free state; Congress could not bar slavery from a territory; and people of African descent imported into the United States and held as slaves, or their descendants, could never be citizens. A state could not bar slaveowners from bringing slaves into that state. Many Republicans, including Abraham Lincoln, considered the decision unjust and as proof that the Slave Power had seized control of the Supreme Court. Written by Chief Justice Roger B. Taney, the decision effectively barred slaves and their descendants from citizenship. Abolitionists were enraged and slave owners encouraged, contributing to tensions on this subject that led to civil war.^[149] Critics note that at the time the Constitution was drafted, five states including North Carolina allowed free blacks to vote.^{[citation needed]}

Civil War and emancipation[edit]

Events leading to
the American Civil War

Slavery Northwest Ordinance Kentucky and Virginia Resolutions Missouri Compromise Tariff of 1828 Nat Turner's slave rebellion Nullification Crisis The Amistad Prigg v. Pennsylvania Texas annexation Mexican–American War Wilmot Proviso Manifest destiny Underground Railroad Nashville Convention Compromise of 1850 Fugitive Slave Act of 1850 Uncle Tom's Cabin Kansas–Nebraska Act Ostend Manifesto Bleeding Kansas Caning of Charles Sumner Dred Scott v. Sandford The Impending Crisis of the South Brown's raid on Harpers Ferry 1860 presidential election Crittenden Compromise Secession of Southern States Star of the West Corwin Amendment Battle of Fort Sumter

v t e

1860 presidential election[edit]

The divisions became fully exposed with the 1860 presidential election, the electorate split four ways. The Southern Democrats endorsed slavery, while the Republicans denounced it, the Northern Democrats said democracy required the people to decide on slavery locally, state by state and territory by territory. The Constitutional Union Party said the survival of the Union was at stake and everything else should be compromised.

Lincoln, the Republican, won with a plurality of popular votes and a majority of electoral votes. Lincoln, however, did not appear on the ballots of ten southern slave states. Many slave owners in the South feared that the real intent of the Republicans was the abolition of slavery in states where it already existed, and that the sudden emancipation of four million slaves would be problematic for the slave owners and for the economy that drew its greatest profits from the labor of people who were not paid.

The slave owners also argued that banning slavery in new states would upset what they saw as a delicate balance of free states and slave states, they feared that ending this balance could lead to the domination of the federal government by the northern free states. This led seven southern states to secede from the Union. When the southern forces attacked a US Army installation at Fort Sumter, the American Civil War began and four additional slave states seceded. Northern leaders had viewed the slavery interests as a threat politically, and with secession, they viewed the prospect of a new southern nation, the Confederate States of America, with control over the Mississippi River and parts of the West, as politically unacceptable.

Civil War[edit]

The consequent American Civil War, beginning in 1861, led to the end of chattel slavery in America. Not long after the war broke out, through a legal maneuver credited to Union General Benjamin F. Butler, a lawyer by profession, slaves who came into Union "possession" were considered "contraband of war". General Butler ruled that they were not subject to return to Confederate owners as they had been before the war. Soon word spread, and many slaves sought refuge in Union territory, desiring to be declared "contraband". Many of the "contrabands" joined the Union Army as workers or troops, forming entire regiments of the U.S. Colored Troops. Others went to refugee camps such as the Grand Contraband Camp near Fort Monroe or fled to northern cities. General Butler's interpretation was reinforced when Congress passed the Confiscation Act of 1861, which declared that any property used by the Confederate military, including slaves, could be confiscated by Union forces.

At the beginning of the war, some Union commanders thought they were supposed to return escaped slaves to their masters. By 1862, when it became clear that this would be a long war, the question of what to do about slavery became more general, the Southern economy and military effort depended on slave labor. It began to seem unreasonable to protect slavery while blockading Southern commerce and destroying Southern production, as one Congressman put it, the slaves "…cannot be neutral. As laborers, if not as soldiers, they will be allies of the rebels, or of the Union."^[150] The same Congressman—and his fellow Radical Republicans—put pressure on Lincoln to rapidly emancipate the slaves, whereas moderate Republicans came to accept gradual, compensated emancipation and colonization.^[151] Copperheads, the border states and War Democrats opposed emancipation, although the border states and War Democrats eventually accepted it as part of total war needed to save the Union.

Emancipation Proclamation[edit]

The Emancipation Proclamation was an executive order issued by President Lincoln on January 1, 1863; in a single stroke it changed the legal status, as recognized by the U.S. government, of 3 million slaves in designated areas of the Confederacy from "slave" to "free". It had the practical effect that as soon as a slave escaped the control of the Confederate government, by running away or through advances of federal troops, the slave became legally and actually free. Plantation owners, realizing that emancipation would destroy their economic system, sometimes moved their slaves as far as possible out of reach of the Union army. By June 1865, the Union Army controlled all of the Confederacy and had liberated all of the designated slaves.^[152]

In 1861, Lincoln expressed the fear that premature attempts at emancipation would mean the loss of the border states, he believed that "to lose Kentucky is nearly the same as to lose the whole game."^[153] At first, Lincoln reversed attempts at emancipation by Secretary of War Simon Cameron and Generals John C. Fremont (in Missouri) and David Hunter (in South Carolina, Georgia and Florida) to keep the loyalty of the border states and the War Democrats.

Lincoln mentioned his Emancipation Proclamation to members of his cabinet on July 21, 1862. Secretary of State William H. Seward told Lincoln to wait for a victory before issuing the proclamation, as to do otherwise would seem like "our last shriek on the retreat".^[154] In September 1862 the Battle of Antietam provided this opportunity, and the subsequent War Governors' Conference added support for the proclamation.^[155] Lincoln had already published a letter^[156] encouraging the border states especially to accept emancipation as necessary to save the Union. Lincoln later said that slavery was "somehow the cause of the war".^[157]

Lincoln issued his preliminary Emancipation Proclamation on September 22, 1862, and said that a final proclamation would be issued if his gradual plan, based on compensated emancipation and voluntary colonization, was rejected. Only the District of Columbia accepted Lincoln's gradual plan, and Lincoln issued his final Emancipation Proclamation on January 1, 1863; in his letter to Hodges, Lincoln explained his belief that

If slavery is not wrong, nothing is wrong … And yet I have never understood that the Presidency conferred upon me an unrestricted right to act officially upon this judgment and feeling … I claim not to have controlled events, but confess plainly that events have controlled me.^[158]

Lincoln's Emancipation Proclamation of January 1, 1863 was a powerful action that promised freedom for slaves in the Confederacy as soon as the Union armies reached them, and authorized the enlistment of African Americans in the Union Army, the Emancipation Proclamation did not free slaves in the Union-allied slave-holding states that bordered the Confederacy. Since the Confederate States did not recognize the authority of President Lincoln, and the proclamation did not apply in the border states, at first the proclamation freed only those slaves who had escaped behind Union lines, the proclamation made the abolition of slavery an official war goal that was implemented as the Union took territory from the Confederacy. According to the Census of 1860, this policy would free nearly four million slaves, or over 12% of the total population of the United States.

Based on the President's war powers, the Emancipation Proclamation applied to territory held by Confederates at the time. However, the Proclamation became a symbol of the Union's growing commitment to add emancipation to the Union's definition of liberty.^[159] Lincoln played a leading role in getting the constitutionally-required two-thirds majority of both houses of Congress to vote for the Thirteenth Amendment,^[160] which made emancipation universal and permanent.

Enslaved African Americans had not waited for Lincoln before escaping and seeking freedom behind Union lines, from early years of the war, hundreds of thousands of African Americans escaped to Union lines, especially in Union-controlled areas such as Norfolk and the Hampton Roads region in 1862 Virginia, Tennessee from 1862 on, the line of Sherman's march, etc. So many African Americans fled to Union lines that commanders created camps and schools for them, where both adults and children learned to read and write, the American Missionary Association entered the war effort by sending teachers south to such contraband camps, for instance, establishing schools in Norfolk and on nearby plantations.

In addition, nearly 200,000 African-American men served with distinction in the Union forces as soldiers and sailors. Most were escaped slaves, the Confederacy was outraged by armed black soldiers and refused to treat them as prisoners of war. They murdered many, as at the Fort Pillow Massacre, and re-enslaved others.^[161]

The Arizona Organic Act abolished slavery on February 24, 1863 in the newly formed Arizona Territory. Tennessee and all of the border states (except Kentucky) abolished slavery by early 1865. Thousands of slaves were freed by the operation of the Emancipation Proclamation as Union armies marched across the South. Emancipation came to the remaining southern slaves after the surrender of all Confederate troops in spring 1865.

In spite of the South's shortage of manpower, until 1865, most Southern leaders opposed arming slaves as soldiers. However, a few Confederates discussed arming slaves. Finally in early 1865 General Robert E. Lee said black soldiers were essential, and legislation was passed, the first black units were in training when the war ended in April.^[162]

The end of slavery[edit]

Booker T. Washington, remembered Emancipation Day in early 1863, when he was a boy of nine in Virginia:^[163]

As the great day drew nearer, there was more singing in the slave quarters than usual, it was bolder, had more ring, and lasted later into the night. Most of the verses of the plantation songs had some reference to freedom.... Some man who seemed to be a stranger (a United States officer, I presume) made a little speech and then read a rather long paper—the Emancipation Proclamation, I think, after the reading we were told that we were all free, and could go when and where we pleased. My mother, who was standing by my side, leaned over and kissed her children, while tears of joy ran down her cheeks, she explained to us what it all meant, that this was the day for which she had been so long praying, but fearing that she would never live to see.

The war ended on June 22, 1865 and following that surrender, the Emancipation Proclamation was enforced throughout remaining regions of the South that had not yet freed the slaves. Slavery continued for a couple of months in some locations.^[164] Federal troops arrived in Galveston, Texas on June 19, to enforce the emancipation, that day of gaining freedom is now celebrated as Juneteenth in several states.

The thirteenth amendment, abolishing slavery except as punishment for a crime, was passed by the Senate in April 1864, and by the House of Representatives in January 1865,^[165] the amendment did not take effect until it was ratified by three fourths of the states, which occurred on December 6, 1865, when Georgia ratified it. On that date, all remaining slaves became officially free.^[166]

Legally, the last 40,000-45,000 slaves were freed in the last two slave states of Kentucky and Delaware^[167] by the final ratification of the Thirteenth Amendment to the Constitution on December 18, 1865. Slaves still held in Tennessee, Kentucky, Kansas, New Jersey, Delaware, West Virginia, Maryland, Missouri, Washington, D.C., and twelve parishes of Louisiana^[168] also became legally free on this date. American historian R.R. Palmer opined that the abolition of slavery in the United States without compensation to the former slave owners was an "annihilation of individual property rights without parallel...in the history of the Western world".^[169] Economic historian Robert E. Wright argues that it would have been much cheaper, with minimal deaths, if the federal government had purchased and freed all the slaves, rather than fighting the Civil War.^[170] Another economic historian, Roger Ransom, writes about how Gerald Gunderson compared compensated emancipation to the cost of the war and "notes that the two are roughly the same order of magnitude — 2.5 to 3.7 billion dollars" ^[171][172] Ransom also writes that compensated emancipation would have tripled federal outlays if paid over the period of 25 years and was a program that had no political support within the United States during the 1860s.^[172]

Reconstruction to present[edit]

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In spite of the issuance of the Emancipation Proclamation and the adoption of the Thirteenth Amendment to the United States Constitution, the road to freedom remained elusive for most former slaves in the United States. While the Constitution of the United States is the supreme law of the land, it is not self-enforcing, nor was the Emancipation Proclamation. The text and principles outlined in them were only words without enforcement, and so alone, they could not and did not abolish slavery, the enactment of the Thirteenth Amendment simply made slavery and all forms of involuntary servitude, except as punishment for crime, unconstitutional. The abolition of slavery – that is the full enforcement of the 13th Amendment - took many decades beyond 1865 to be realized. Enforcement of the 13th amendment began during the Reconstruction period, but there were many setbacks between that time and full enforcement.

Proponents of the 13th Amendment to the Constitution knew that without legislation that codified the 13th Amendment in the form of laws and statutes along with law enforcement agencies to uphold the laws, there would be no true end to slavery, and this is the reason for the inclusion of Section 2 of the 13th Amendment authorizing Congress to establish laws upholding the amendment, the federal government also sent troops to the south to provide protection to the former slaves who were still living among their former masters.

During the Reconstruction era from January 1, 1863 to March 31, 1877, federal troops were stationed in the south specifically to keep blacks from being re-enslaved as the society made the transition to one of free labor. However, in the Gilded Age that followed the withdrawal, blacks were left at the mercy of the whites. When African Americans in the south no longer had the protection of the federal troops, whites imposed laws to restrict their movement and found other ways to practice involuntary servitude.

This lasted well into the 20th century. President Lyndon B. Johnson abolished peonage in 1966, which rapidly decreased sharecropping in every plantation nationwide. Journalist Douglas A. Blackmon reported in his book Pulitzer Prize winning book Slavery By Another Name that many blacks were virtually enslaved under convict leasing programs, which started after the Civil War. Most Southern states had no prisons; they leased convicts to businesses and farms for their labor, and the lessee paid for food and board. The incentives for abuse were satisfied.

The continued involuntary servitude took various forms but the primary forms included convict leasing, peonage, and sharecropping, with the latter eventually encompassing poor whites as well. By the 1930s, whites constituted most of the sharecroppers in the South. Mechanization of agriculture had reduced the need for farm labor, and many blacks left the South in the Great Migration.

Jurisdictions and states created fines and sentences for a wide variety of minor crimes, and used these as an excuse to arrest and sentence blacks. Under convict leasing programs, African American men, often guilty of no crime at all, were arrested, compelled to work without pay, repeatedly bought and sold, and coerced to do the bidding of the leaseholder. Sharecropping, as it was practiced during this period, often involved severe restrictions on the freedom of movement of sharecroppers, who could be whipped for leaving the plantation. Both sharecropping and convict leasing were legal and tolerated by both the north and south. However, peonage was an illicit form of forced labor, its existence was ignored by authorities while thousands of African Americans and poor Anglo Americans were subjugated and held in bondage until the mid 1960s to the late 1970s.

With the exception of cases of peonage, beyond the period of Reconstruction, the federal government took almost no action to enforce the 13th Amendment until December 1941 when President Franklin Delano Roosevelt summoned his attorney general. Five days after Pearl Harbor, at the request of the president Attorney General Francis Biddle issued Circular No. 3591 to all federal prosecutors, instructing them to actively investigate and try any case of involuntary servitude or slavery. Several months later, convict leasing was officially abolished, but aspects have persisted in other forms, while historians argue that other systems of penal labor, were all created in 1865 and convict leasing was simply the most oppressive form.

Over time a large civil rights movement arose to bring full civil rights and equality under the law to all Americans.

Convict leasing[edit]

With emancipation a legal reality, white Southerners were concerned with both controlling the newly freed slaves and keeping them in the labor force at the lowest level, the system of convict leasing began during Reconstruction and was fully implemented in the 1880s and officially ending in the last state, Alabama, in 1928. It persisted in various forms until it was abolished in 1942 by President Franklin D. Roosevelt during World War II, several months after the attack on Pearl Harbor involved the U.S. in the conflict. This system allowed private contractors to purchase the services of convicts from the state or local governments for a specific time period. African Americans, due to "vigorous and selective enforcement of laws and discriminatory sentencing," made up the vast majority of the convicts leased.^[173] Writer Douglas A. Blackmon writes of the system:

It was a form of bondage distinctly different from that of the antebellum South in that for most men, and the relatively few women drawn in, this slavery did not last a lifetime and did not automatically extend from one generation to the next, but it was nonetheless slavery – a system in which armies of free men, guilty of no crimes and entitled by law to freedom, were compelled to labor without compensation, were repeatedly bought and sold, and were forced to do the bidding of white masters through the regular application of extraordinary physical coercion.^[174]

The constitutional basis for convict leasing is that the Thirteenth Amendment, while abolishing slavery and involuntary servitude generally, expressly permits it as a punishment for crime.

Educational issues[edit]

The anti-literacy laws after 1832 contributed greatly to the problem of widespread illiteracy facing the freedmen and other African Americans after Emancipation and the Civil War 35 years later, the problem of illiteracy and need for education was seen as one of the greatest challenges confronting these people as they sought to join the free enterprise system and support themselves during Reconstruction and thereafter.

Consequently, many black and white religious organizations, former Union Army officers and soldiers, and wealthy philanthropists were inspired to create and fund educational efforts specifically for the betterment of African Americans; some African Americans had started their own schools before the end of the war. Northerners helped create numerous normal schools, such as those that became Hampton University and Tuskegee University, to generate teachers, as well as other colleges for former slaves. Blacks held teaching as a high calling, with education the first priority for children and adults. Many of the most talented went into the field, some of the schools took years to reach a high standard, but they managed to get thousands of teachers started. As W. E. B. Du Bois noted, the black colleges were not perfect, but "in a single generation they put thirty thousand black teachers in the South" and "wiped out the illiteracy of the majority of black people in the land".^[175]

Northern philanthropists continued to support black education in the 20th century, even as tensions rose within the black community, exemplified by Booker T. Washington and W. E. B. Du Bois, as to the proper emphasis between industrial and classical academic education at the college level. An example of a major donor to Hampton Institute and Tuskegee was George Eastman, who also helped fund health programs at colleges and in communities.^[176] Collaborating with Washington in the early decades of the 20th century, philanthropist Julius Rosenwald provided matching funds for community efforts to build rural schools for black children, he insisted on white and black cooperation in the effort, wanting to ensure that white-controlled school boards made a commitment to maintain the schools. By the 1930s local parents had helped raise funds (sometimes donating labor and land) to create over 5,000 rural schools in the South. Other philanthropists, such as Henry H. Rogers and Andrew Carnegie, each of whom had arisen from modest roots to become wealthy, used matching fund grants to stimulate local development of libraries and schools.

Apologies[edit]

On February 24, 2007, the Virginia General Assembly passed House Joint Resolution Number 728 acknowledging "with profound regret the involuntary servitude of Africans and the exploitation of Native Americans, and call for reconciliation among all Virginians",^[177] with the passing of this resolution, Virginia became the first state to acknowledge through the state's governing body their state's negative involvement in slavery. The passing of this resolution was in anticipation of the 400th anniversary commemoration of the founding of Jamestown, Virginia (the first permanent English settlement in North America), which was an early colonial slave port. Apologies have also been issued by Alabama, Florida, Maryland, North Carolina and New Jersey.^[178]

On July 30, 2008, the United States House of Representatives passed a resolution apologizing for American slavery and subsequent discriminatory laws.^[179]

The U.S. Senate unanimously passed a similar resolution on June 18, 2009, apologizing for the "fundamental injustice, cruelty, brutality, and inhumanity of slavery".^[180] It also explicitly states that it cannot be used for restitution claims.^[181]

Political legacy[edit]

A 2016 study, published in The Journal of Politics, finds that "Whites who currently live in Southern counties that had high shares of slaves in 1860 are more likely to identify as a Republican, oppose affirmative action, and express racial resentment and colder feelings toward blacks." The study contends that "contemporary differences in political attitudes across counties in the American South in part trace their origins to slavery's prevalence more than 150 years ago. "^[182] The authors argue that their findings are consistent with the theory that "following the Civil War, Southern whites faced political and economic incentives to reinforce existing racist norms and institutions to maintain control over the newly freed African American population, this amplified local differences in racially conservative political attitudes, which in turn have been passed down locally across generations."^[182]

A 2017 study in the British Journal of Political Science argued that the British American colonies without slavery adopted better democratic institutions in order to attract migrant workers to their colonies.^[183]

Justification[edit]

"A necessary evil"[edit]

In the 19th century, proponents of slavery often defended the institution as a "necessary evil". White people of that time feared that emancipation of black slaves would have more harmful social and economic consequences than the continuation of slavery; in 1820, Thomas Jefferson, one of the Founding Fathers of the United States, wrote in a letter that with slavery:

We have the wolf by the ear, and we can neither hold him, nor safely let him go. Justice is in one scale, and self-preservation in the other.^[184]

The French writer and traveler Alexis de Tocqueville, in Democracy in America (1835), expressed opposition to slavery while observing its effects on American society, he felt that a multiracial society without slavery was untenable, as he believed that prejudice against blacks increased as they were granted more rights (for example, in northern states). He believed that the attitudes of white southerners, and the concentration of the black population in the south, were bringing the white and black populations to a state of equilibrium, and were a danger to both races, because of the racial differences between master and slave, he believed that the latter could not be emancipated.^[185]

Robert E. Lee wrote in 1856:

There are few, I believe, in this enlightened age, who will not acknowledge that slavery as an institution is a moral and political evil, it is idle to expatiate on its disadvantages. I think it is a greater evil to the white than to the colored race. While my feelings are strongly enlisted in behalf of the latter, my sympathies are more deeply engaged for the former, the blacks are immeasurably better off here than in Africa, morally, physically, and socially. The painful discipline they are undergoing is necessary for their further instruction as a race, and will prepare them, I hope, for better things. How long their servitude may be necessary is known and ordered by a merciful Providence.^[186]

"A positive good"[edit]

However, as the abolitionist movement's agitation increased and the area developed for plantations expanded, apologies for slavery became more faint in the South. Leaders then described slavery as a beneficial scheme of labor control. John C. Calhoun, in a famous speech in the Senate in 1837, declared that slavery was "instead of an evil, a good—a positive good". Calhoun supported his view with the following reasoning: in every civilized society one portion of the community must live on the labor of another; learning, science, and the arts are built upon leisure; the African slave, kindly treated by his master and mistress and looked after in his old age, is better off than the free laborers of Europe; and under the slave system conflicts between capital and labor are avoided. The advantages of slavery in this respect, he concluded, "will become more and more manifest, if left undisturbed by interference from without, as the country advances in wealth and numbers".^[187]

Other Southern writers who also began to portray slavery as a positive good were James Henry Hammond and George Fitzhugh, they presented several arguments to defend the act of slavery in the South.^[188] Hammond, like Calhoun, believed that slavery was needed to build the rest of society; in a speech to the Senate on March 4, 1858, Hammond developed his "Mudsill Theory," defending his view on slavery stating, "Such a class you must have, or you would not have that other class which leads progress, civilization, and refinement. It constitutes the very mud-sill of society and of political government; and you might as well attempt to build a house in the air, as to build either the one or the other, except on this mud-sill." Hammond believed that in every class one group must accomplish all the menial duties, because without them the leaders in society could not progress.^[189] He argued that the hired laborers of the North were slaves too: "The difference… is, that our slaves are hired for life and well compensated; there is no starvation, no begging, no want of employment," while those in the North had to search for employment.^[190]

George Fitzhugh used assumptions about white superiority to justify slavery, writing that, "the Negro is but a grown up child, and must be governed as a child." In The Universal Law of Slavery, Fitzhugh argues that slavery provides everything necessary for life and that the slave is unable to survive in a free world because he is lazy, and cannot compete with the intelligent European white race. He states that "The negro slaves of the South are the happiest, and in some sense, the freest people in the world."^[191] Without the South, "He (slave) would become an insufferable burden to society" and "Society has the right to prevent this, and can only do so by subjecting him to domestic slavery."^[192][193]

On March 21, 1861, Vice President Alexander Stephens of the Confederacy, delivered the Cornerstone Speech. He explained the differences between the constitution of the Confederate Republic and that of the United States, and laid out the cause for the American Civil War, and a defense of slavery.^[194]

The new Constitution has put at rest forever all the agitating questions relating to our peculiar institutions—African slavery as it exists among us—the proper status of the negro in our form of civilization, this was the immediate cause of the late rupture and present revolution. Jefferson, in his forecast, had anticipated this, as the "rock upon which the old Union would split." He was right. What was conjecture with him, is now a realized fact, but whether he fully comprehended the great truth upon which that rock stood and stands, may be doubted. The prevailing ideas entertained by him and most of the leading statesmen at the time of the formation of the old Constitution were, that the enslavement of the African was in violation of the laws of nature; that it was wrong in principle, socially, morally and politically. It was an evil they knew not well how to deal with; but the general opinion of the men of that day was, that, somehow or other, in the order of Providence, the institution would be evanescent and pass away... Those ideas, however, were fundamentally wrong, they rested upon the assumption of the equality of races. This was an error, it was a sandy foundation, and the idea of a Government built upon it—when the "storm came and the wind blew, it fell."

Our new Government is founded upon exactly the opposite ideas; its foundations are laid, its cornerstone rests, upon the great truth that the negro is not equal to the white man; that slavery, subordination to the superior race, is his natural and moral condition.^[194]

Native Americans[edit]

During the 16th, 17th and 18th centuries, Indian slavery, the enslavement of Native Americans by European colonists, was common. Many of these Native slaves were exported to the Northern colonies and to off-shore colonies, especially the "sugar islands" of the Caribbean.^[18] Historian Alan Gallay estimates that from 1670 to 1715, British slave traders sold between 24,000 and 51,000 Native Americans from what is now the southern part of the U.S.^[195]

Slavery of Native Americans was organized in colonial and Mexican California through Franciscan missions, theoretically entitled to ten years of Native labor, but in practice maintaining them in perpetual servitude, until their charge was revoked in the mid-1830s. Following the 1847–48 invasion by U.S. troops, the "loitering or orphaned Indians" were de facto enslaved in the new state from statehood in 1850 to 1867.^[196] Slavery required the posting of a bond by the slave holder and enslavement occurred through raids and a four-month servitude imposed as a punishment for Indian "vagrancy".^[197]

Native Americans holding African-American slaves[edit]

After 1800, some of the Cherokee and the other four civilized tribes of the Southeast started buying and using black slaves as labor, they continued this practice after removal to Indian Territory in the 1830s, when as many as 15,000 enslaved blacks were taken with them.^[18][198]

The nature of slavery in Cherokee society often mirrored that of white slave-owning society, the law barred intermarriage of Cherokees and enslaved African Americans, but Cherokee men had unions with enslaved women, resulting in mixed-race children.^[18] Cherokee who aided slaves were punished with one hundred lashes on the back; in Cherokee society, persons of African descent were barred from holding office even if they were also racially and culturally Cherokee. They were also barred from bearing arms and owning property, the Cherokee prohibited teaching African Americans to read and write.^{[18][199][200]}

By contrast, the Seminole welcomed into their nation African Americans who had escaped slavery (Black Seminoles). They tended to live alongside each other, rather than joining their cultures.

Inter-tribal slavery[edit]

The Haida and Tlingit Indians who lived along southeast Alaska's coast were traditionally known as fierce warriors and slave-traders, raiding as far as California. Slavery was hereditary after slaves were taken as prisoners of war, among some Pacific Northwest tribes, about a quarter of the population were slaves.^[201][202] Other slave-owning tribes of North America were, for example, Comanche of Texas, Creek of Georgia, the fishing societies, such as the Yurok, that lived along the coast from what is now Alaska to California; the Pawnee, and Klamath.^[25]

Some tribes held people as captive slaves late in the 19th century, for instance, "Ute Woman", was a Ute captured by the Arapaho and later sold to a Cheyenne. She was kept by the Cheyenne to be used as a prostitute to serve American soldiers at Cantonment in the Indian Territory, she lived in slavery until about 1880. She died of a hemorrhage resulting from "excessive sexual intercourse".^[203]

Black slaveholders[edit]

Slaveholders included people of African ancestry. An African former indentured servant who settled in Virginia in 1621, Anthony Johnson became one of the earliest documented slave owners in the mainland American colonies when he won a civil suit for ownership of John Casor.^[204] In 1830 there were 3,775 such black slaveholders in the South who owned a total of 12,760 slaves, a small percent, out of a total of over 2 million slaves.^[205] 80% of the black slaveholders were located in Louisiana, South Carolina, Virginia, and Maryland.

There were economic and ethnic differences between free blacks of the Upper South and Deep South, with the latter fewer in number, but wealthier and typically of mixed race. Half of the black slaveholders lived in cities rather than the countryside, with most living in New Orleans and Charleston. Especially New Orleans had a large, relatively wealthy free black population (gens de couleur) composed of people of mixed race, who had become a third social class between whites and enslaved blacks, under French and Spanish colonial rule. Relatively few non-white slaveholders were "substantial planters". Of those who were, most were of mixed race, often endowed by white fathers with some property and social capital,^[206] for example, Andrew Durnford of New Orleans was listed as owning 77 slaves.^[205] According to Rachel Kranz: "Durnford was known as a stern master who worked his slaves hard and punished them often in his efforts to make his Louisiana sugar plantation a success."^[207]

The historians John Hope Franklin and Loren Schweninger wrote:

A large majority of profit-oriented free black slaveholders resided in the Lower South, for the most part, they were persons of mixed racial origin, often women who cohabited or were mistresses of white men, or mulatto men ... Provided land and slaves by whites, they owned farms and plantations, worked their hands in the rice, cotton, and sugar fields, and like their white contemporaries were troubled with runaways.^[208]

The historian Ira Berlin wrote:

In slave societies, nearly everyone—free and slave—aspired to enter the slaveholding class, and upon occasion some former slaves rose into slaveholders' ranks, their acceptance was grudging, as they carried the stigma of bondage in their lineage and, in the case of American slavery, color in their skin.^[209]

African-American history and culture scholar Henry Louis Gates Jr. wrote:

... the percentage of free black slave owners as the total number of free black heads of families was quite high in several states, namely 43 percent in South Carolina, 40 percent in Louisiana, 26 percent in Mississippi, 25 percent in Alabama and 20 percent in Georgia.^[210]

Free blacks were perceived "as a continual symbolic threat to slaveholders, challenging the idea that 'black' and 'slave' were synonymous".^{[attribution needed]} Free blacks were sometimes seen as potential allies of fugitive slaves and "slaveholders bore witness to their fear and loathing of free blacks in no uncertain terms."^[211] For free blacks, who had only a precarious hold on freedom, "slave ownership was not simply an economic convenience but indispensable evidence of the free blacks' determination to break with their slave past and their silent acceptance – if not approval – of slavery."^[212]

The historian James Oakes in 1982 stated that "[t]he evidence is overwhelming that the vast majority of black slaveholders were free men who purchased members of their families or who acted out of benevolence",^[213] after 1810 southern states made it increasingly difficult for any slaveholders to free slaves. Often the purchasers of family members were left with no choice but to maintain, on paper, the owner–slave relationship; in the 1850s "there were increasing efforts to restrict the right to hold bondsmen on the grounds that slaves should be kept 'as far as possible under the control of white men only.'"^[214]

In his 1985 statewide study of black slaveholders in South Carolina, Larry Koger challenged the benevolent view, he found that the majority of black slaveholders appeared to hold at least some of their slaves for commercial reasons. For instance, he noted that in 1850 more than 80 percent of black slaveholders were of mixed race, but nearly 90 percent of their slaves were classified as black.^[215] Koger also noted that many South Carolina free blacks operated small businesses as skilled artisans, and many owned slaves working in those businesses.

Barbary pirates[edit]

Barbary pirates from North Africa began to seize North American colonists as early as 1625,^[216] and roughly 700 Americans were held captive in this region as slaves between 1785 and 1815.^[217] Some captives used their experiences as a North African slave to criticize slavery in the United States, such as William Ray in his book Horrors of Slavery.^[218]

The Barbary situation led directly to the creation of the United States Navy in March 1794. While the United States managed to secure peace treaties, these obliged it to pay tribute for protection from attack. Payments in ransom and tribute to the Barbary states amounted to 20% of United States government annual expenditures in 1800,^[219] the First Barbary War in 1801 and the Second Barbary War in 1815 led to more favorable peace terms ending the payment of tribute.

Distribution[edit]

Distribution of slaves[edit]

Census Year	# Slaves	# Free blacks	Total blacks	% Free blacks	Total US population	% Blacks of total
1790	697,681	59,527	757,208	8%	3,929,214	19%
1800	893,602	108,435	1,002,037	11%	5,308,483	19%
1810	1,191,362	186,446	1,377,808	14%	7,239,881	19%
1820	1,538,022	233,634	1,771,656	13%	9,638,453	18%
1830	2,009,043	319,599	2,328,642	14%	12,860,702	18%
1840	2,487,355	386,293	2,873,648	13%	17,063,353	17%
1850	3,204,313	434,495	3,638,808	12%	23,191,876	16%
1860	3,953,760	488,070	4,441,830	11%	31,443,321	14%
1870	0	4,880,009	4,880,009	100%	38,558,371	13%
Source:"Distribution of Slaves in US History". Retrieved May 13, 2010.

Total Slave Population in US 1790–1860, by State and Territory^[220]

Census Year	1790	1800	1810	1820	1830	1840	1850	1860
All States	694,207	887,612	1,130,781	1,529,012	1,987,428	2,482,798	3,200,600	3,950,546
Alabama	–	–	–	47,449	117,549	253,532	342,844	435,080
Arkansas	–	–	–	–	4,576	19,935	47,100	111,115
California	–	–	–	–	–	–	–	–
Connecticut	2,648	951	310	97	25	54	–	–
Delaware	8,887	6,153	4,177	4,509	3,292	2,605	2,290	1,798
Florida	–	–	–	–	–	25,717	39,310	61,745
Georgia	29,264	59,699	105,218	149,656	217,531	280,944	381,682	462,198
Illinois	–	–	–	917	747	331	–	–
Indiana	–	–	–	190	3	3	–	–
Iowa	–	–	–	–	–	16	–	–
Kansas	–	–	–	–	–	–	–	2
Kentucky	12,430	40,343	80,561	126,732	165,213	182,258	210,981	225,483
Louisiana	–	–	–	69,064	109,588	168,452	244,809	331,726
Maine	–	–	–	–	2	–	–	–
Maryland	103,036	105,635	111,502	107,398	102,994	89,737	90,368	87,189
Massachusetts	–	–	–	–	1	–	–	–
Michigan	–	–	–	–	32	–	–	–
Minnesota	–	–	–	–	–	–	–	–
Mississippi	–	–	–	32,814	65,659	195,211	309,878	436,631
Missouri	–	–	–	10,222	25,096	58,240	87,422	114,931
Nebraska	–	–	–	–	–	–	–	15
Nevada	–	–	–	–	–	–	–	–
New Hampshire	157	8	–	–	3	1	–	–
New Jersey	11,423	12,422	10,851	7,557	2,254	674	236	18
New York	21,193	20,613	15,017	10,088	75	4	–	–
North Carolina	100,783	133,296	168,824	205,017	245,601	245,817	288,548	331,059
Ohio	–	–	–	–	6	3	–	–
Oregon	–	–	–	–	–	–	–	–
Pennsylvania	3,707	1,706	795	211	403	64	–	–
Rhode Island	958	380	108	48	17	5	–	–
South Carolina	107,094	146,151	196,365	251,783	315,401	327,038	384,984	402,406
Tennessee	–	13,584	44,535	80,107	141,603	183,059	239,459	275,719
Texas	–	–	–	–	–	–	58,161	182,566
Utah	–	–	–	–	–	–	26	29
Vermont	–	–	–	–	–	–	–	–
Virginia	292,627	346,671	392,518	425,153	469,757	449,087	472,528	490,865
Wisconsin	–	–	–	–	–	11	4	–

For various reasons, the census did not always include all of the slaves, especially in the West. California was admitted as a free state and reported no slaves. However, there were many slaves that were brought to work in the mines during the California Gold Rush,^[221] some Californian communities openly tolerated slavery, such as San Bernardino, which was mostly made up of transplants from the neighboring slave territory of Utah.^[222] New Mexico Territory never reported any slaves on the census, yet sued the government for compensation for 600 slaves that were freed when congress outlawed slavery in the territory.^[223] Utah was actively trying to hide its slave population from Congress^[224][225] and did not report slaves in several communities.^[226] Additionally, the census did not traditionally include Native Americans, and hence did not include Native American slaves or black slaves owned by Native Americans. There were hundreds of Native American slaves in California,^[227] Utah^[228] and New Mexico^[223] that were never recorded in the census.

Distribution of slaveholders[edit]

As of the 1860 Census, one may compute the following statistics on slaveholding:^[229]

• Enumerating slave schedules by county, 393,975 named persons held 3,950,546 unnamed slaves, for an average of about ten slaves per holder. As some large holders held slaves in multiple counties and are thus multiply counted, this slightly overestimates the number of slaveholders.
• Excluding slaves, the 1860 U.S. population was 27,167,529, yielding about 1 in 70 free persons (1.5%) being slaveholders. By counting only named slaveowners, this approach does not acknowledge people who benefited from slavery by being in a slaveowning household, e.g. the wife and children of an owner. Only 8% of all US families owned slaves,^[230] while in the South, 33% of families owned slaves. According to historian Joseph Glatthaar, the number of soldiers of the Confederacy's Army of Northern Virginia who either owned slaves or came from slave owning households is "almost one of every two 1861 recruits"; in addition he notes that, "Untold numbers of enlistees rented land from, sold crops to, or worked for slaveholders. In the final tabulation, the vast majority of the volunteers of 1861 had a direct connection to slavery."^[231]
• The distribution of slaves among holders was very unequal: holders of 200 or more slaves, constituting less than 1% of all US slaveholders (fewer than 4,000 persons, 1 in 7,000 free persons, or 0.015% of the population) held an estimated 20–30% of all slaves (800,000 to 1,200,000 slaves). Nineteen holders of 500 or more slaves have been identified,^[232] the largest slaveholder was Joshua John Ward, of Georgetown, South Carolina, who in 1850 held 1,092 slaves,^[233] and whose heirs in 1860 held 1,130 or 1,131 slaves^[232][233] – he was dubbed "the king of the rice planters",^[233] and one of his plantations is now part of Brookgreen Gardens.

Historiography[edit]

The historian Peter Kolchin, writing in 1993, noted that until the latter decades of the 20th century, historians of slavery had primarily concerned themselves with the culture, practices and economics of the slaveholders, not with the slaves, this was in part due to the circumstance that most slaveholders were literate and left behind written records, whereas slaves were largely illiterate and not in a position to leave written records. Scholars differed as to whether slavery should be considered a benign or a "harshly exploitive" institution.^[234]

Much of the history written prior to the 1950s had a distinctive racist slant to it.^[234] By the 1970s and 1980s, historians were using archaeological records, black folklore, and statistical data to develop a much more detailed and nuanced picture of slave life. Individuals were shown to have been resilient and somewhat autonomous in many of their activities, within the limits of their situation and despite its precariousness. Historians who wrote in this era include John Blassingame (Slave Community), Eugene Genovese (Roll, Jordan, Roll), Leslie Howard Owens (This Species of Property), and Herbert Gutman (The Black Family in Slavery and Freedom).^[235]

See also[edit]

History of slavery in individual states and territories[edit]

Notes[edit]

Bibliography[edit]

National and comparative studies[edit]

State and local studies[edit]

Video[edit]

• Jenkins, Gary (director). Negroes To Hire (Lifedocumentaries, 2010); 52 minutes DVD; on slavery in Missouri

Historiography[edit]

Primary sources[edit]

Further reading[edit]

Scholarly journals

• Turner, Edward Raymond, The First Abolition Society in the United States
• Singleton, Theresa A., "The Archaeology of Slavery in North America" Annual Review of Anthropology, Vol. 24, (1995), pp. 119–140
• McCarthy, Thomas. "Coming to Terms with Our Past, Part II: On the Morality and Politics of Reparations for Slavery" Political Theory, Vol. 32, No. 6 (December 2004), pp. 750–772

Oral histories of ex-slaves

• Before Freedom When I Just Can Remember: Twenty-seven Oral Histories of Former South Carolina Slaves Belinda Hurmence, 1989. ISBN 0-89587-069-X
• Before Freedom: Forty-Eight Oral Histories of Former North & South Carolina Slaves. Belinda Hurmence. Mentor Books: 1990. ISBN 0-451-62781-4
• God Struck Me Dead, Voices of Ex-Slaves Clifton H. Johnson ISBN 0-8298-0945-7

Literary and cultural criticism

• Baptist, Edward E. The Half Has Never Been Told: Slavery and the Making of American Capitalism. New York City: Basic Books, 2014. ISBN 0-465-00296-X
• Ryan, Tim A. Calls and Responses: The American Novel of Slavery since Gone with the Wind. Baton Rouge: Louisiana State University Press, 2008.
• Van Deburg, William. Slavery and Race in American Popular Culture. Madison: University of Wisconsin Press, 1984.

External links[edit]

Wikimedia Commons has media related to Slavery in the United States.

• "How Slaves Built American Capitalism", CounterPunch, December 18, 2015
• "Born in Slavery: Slave Narratives from the Federal Writers' Project, 1936–1938", Library of Congress
• "Voices from the Days of Slavery", audio interviews of former slaves, 1932-1975, Library of Congress
• Report of the Brown University Steering Committee on Slavery and Justice
• "Slavery and the Making of America", WNET (4-part series)
• "Slavery in the United States", Economic History Encyclopedia, March 26, 2008
• North American Slave Narratives, Documenting the American South, Louis Round Wilson Library
• "Slavery and Civil War digital collection", scanned original documents, Grand Valley State University
• "How Slavery Really Ended in America", New York Times Magazine, April 1, 2011
• "The Color Line", 6-page lesson plan for high school, Zinn Education Project
• "The First Slaves", 15-page teaching guide for high school, Zinn Education Project
• "Harvesting Cotton-Field Capitalism: Edward Baptist's New Book Follows the Money on Slavery", The New York Times, October 3, 2014
• "5 Things About Slavery You Probably Didn't Learn In Social Studies: A Short Guide To 'The Half Has Never Been Told'", HuffPost, October 25, 2014
• "Slavery" maps in the U.S. Persuasive Cartography collection, Cornell University Library