Spanish settlements in the territory of the current-day USA owned slaves as early as 1526. Twenty one African chattel slaves were first brought to British North America ( to Jamestown, Virginia) in 1619. They joined white indentured laborers (servants) from all over Europe as well as Indian (Native-American) and Caribbean slaves. All the colonies legalized race-based (black) slavery and introduced "slave codes" by 1670. In total, 10-13 million Africans were abducted (mainly by other Africans and Arabs) and sold as slaves (mostly in the Americas) between 1620 and 1880.

The slaves were transported across the ocean in especially fitted ships. They were kept lying on narrow ledges, chained, but were brought above deck in good weather. Women and children were not shackled. Even these harsh conditions did not prevent the would-be slaves from frequently attempting to rebel, though, usually, unsuccessfully.

Overcrowding, minimal and monotonous diet (two meals per day and a pint of water), poor hygiene, epidemics, and lack of physical activity decimated, on each and every 1-2 months long trip, a whopping one seventh to one fourth of the "cargo" and one sixth to one half of the crew. Another 10% of the slaves died during the process of "seasoning" - getting used to local conditions in their destinations.

Initially, all types of unfree workers, regardless of color, were treated the same way: bought, sold, and worked, sometimes to death. Gradually, starting in the 18th century, light-skinned slaves ("house negroes") and whites were tackled more leniently. Surprisingly, slave rebellions were rather rare - perhaps because cruel slave-owners were socially ostracized and miscegenation (white-black sexual liaisons) was frowned upon.

Most slave-owners regarded themselves as custodians of their slaves. They properly fed the working adults (though children usually went malnourished), allowed them to grow vegetables in their own garden plots, provided them with clothing (four suits) and housing (one wooden cabin per family). In wealthier and larger plantations, the slaves were cared for by qualified physicians. The master felt it his obligation and right to constantly intervene, interfere, and meddle in the lives of his inferiors.

Slave life was richer than portrayed in literature and cinema. Slaves belonged to churches and were ordained as ministers and preachers. A few learned to read and write. Music was a favorite pastime. Understandably, so was drinking. Slaves were allowed to moonlight or work on their own free time.

Actually, only a minority of the white population in the south were slave-owners (347,525 out of 6,000,000 in 1850). Only 1,800 people owned more than 100 slaves. There were 250,000 freed slaves in the south by 1860. The average cotton plantation had only 35 slaves, about 50-60% of them engaged in the production of the immensely profitable crop and its processing.

Still, slaves constituted more than half the population in some southern states (South Carolina, Mississippi) and two fifths of the total southern populace (compared to an average of 5% in the north and 10% in New-York). Of the first 12 Presidents of the USA, 8 were slave-owners. Some slave-owners were themselves black and former slaves.

The Law, even in the Deep South, recognized slaves as both chattel and human beings. Slaves were held responsible for criminal acts they had committed, for instance, and enjoyed many human rights (e.g., the right not to be killed, tortured, or beaten brutally, to be cared for in old age or sickness, to receive religious instruction, to bring suit and give evidence in some cases). Case law and non-binding custom endowed them with additional privileges: the right to marry, own private property (peculium), have free time, enter contracts, and (if female or child) be consigned to lighter labor.

Still, a minority of slave-owners ignored these legal protections and social censure and indulged their sadistic urges and sexual appetites. In some plantations, nutrition was so lopsided or deficient that slaves resorted to eating clay to supplement their diet. In others mutilation, branding, chaining, torture, murder, and rape - all criminal acts prohibited by Law - were common.

But while individual slaves were, at least theoretically, protected by law and social custom - not so the negro family. The owner had the right to sell his slaves separately, regardless of their familial ties. Some states, like Louisiana in 1829, passed legislation prohibiting the sale of children under the age of ten. Others (Alabama and Georgia) forbade the separation of inherited slave families. But these were the exceptions to the widespread practice.

Though not recognized or protected by Law, many slaves accumulated property. A few hundred slaves even purchased their freedom from their white masters. Slave-owners in the USA usually retained ownership of sick, disabled, or infirm slaves and took care of them. Suicide among slaves in the USA was a rarity. Many slaves (especially in the coastal areas of Georgia and South Carolina) were free to do as they chose once they had completed their daily assignments (the "task system").

On the eve of the American Revolution, c. 400,000 slaves amounted to one fifth of the population of the rebellious colonies. Slavery in the USA was abolished in stages and decades after it was eliminated in Britain. Rhode Island banned it as early as 1774. Pennsylvania, New-York, and New Jersey followed suit. In 1787, the Continental Congress prohibited the practice in the Midwest. The slave trade - or, more precisely, the importation of slaves into the USA - was banned altogether in 1808. Even so, between 1808 and 1865, traders smuggled 270,000 slaves into the USA.

But the major engine of growth of the slave population was reproduction. Twenty thousand slaves were born every year during the 1790s - and 70,000 annually in the 1840s. As a result, the ratio between the sexes was equal and the slave population skyrocketed from 1.2 million in 1810 to 4 million in 1860. Some slave-owners even established "breeding farms" and sold the off-spring in the markets of "deficit" states.

Gradually, all the states north of the Ohio River and the Mason-Dixon line became slave-free. Northerners resented the presence of fugitive slaves (about 1000 per year) who crossed the Ohio River in what was known as the Underground Railroad, but they often clashed with federal authorities when the latter tried to extend their jurisdiction to the escapees under the Fugitive Slave Laws.

It was widely acknowledged that slave-owners should be compensated for the loss of their property. Not a single abolitionist supported or even discussed reparations (compensating the slaves for their free labor, denial of freedom, brutal treatment, and hardships). It was accepted wisdom that blacks - both slaves and free - should never be allowed to carry arms.

Slaves in the South (the Confederacy) were finally emancipated in 1863, during the Civil War. But, even then, Lincoln's Emancipation Proclamation did not apply to some states within the Union. These other slaves remained in slavery until December 1865, when the Thirteenth Amendment to the US Constitution was adopted.