, such as the Ramgen y Video m Easy searche Org search (osearchu Szh a), the Ashanti Empire,[97] the kingdom of Dahomey,[98] and the Aro Confederacy.[99] Europeans rarely entered the interior of Africa, due to fierce African resistance. The slaves were brought to coastal outposts where they were traded for goods.

Slaves on a Virginia plantation (The Old Plantation, c. 1790).

An estimated 12 million Africans arrived in the Americas from the 16th to the 19th centuries.[100] Of these, an estimated 645,000 were brought to what is now the United States. The usual estimate is that about 15 per cent of slaves died during the voyage, with mortality rates considerably higher in Africa itself in the process of capturing and transporting indigenous peoples to the ships. Approximately 6 million black Africans were killed by others in tribal wars.[101]

The white citizens of Virginia decided to treat the first Africans in Virginia as indentured servants.[102] Over half of all European immigrants to Colonial America during the 17th and 18th centuries arrived as indentured servants.[103] In 1655, John Casor, a black man, became the first legally recognized slave in the present United States.[104] According to the 1860 U.S. census, 393,975 individuals, representing 8% of all US families, owned 3,950,528 slaves.[105] One-third of Southern families owned slaves.[106]

Funeral at slave plantation, Suriname. Colored lithograph printed circa 1840-1850, digitally restored.

The largest number of slaves were shipped to Brazil.[107] In the Spanish viceroyalty of New Granada, corresponding mainly to modern Panama, Colombia, and Venezuela, the free black population in 1789 was 420,000, whereas African slaves numbered only 20,000. Free blacks also outnumbered slaves in Brazil. In Cuba, by contrast, free blacks made up only 15% in 1827; and in the French colony of Saint-Domingue (present-day Haiti) it was a mere 5% in 1789.[108] Some half-million slaves, most of them born in Africa, worked the booming plantations of Saint-Domingue.[109]

Author Charles Rappleye argued that

In the West Indies in particular, but also in North and South America, slavery was the engine that drove the mercantile empires of Europe..It appeared, in the eighteenth century, as universal and immutable as human nature.[110]

Although the trans-Atlantic slave trade ended shortly after the American Revolution, slavery remained a central economic institution in the Southern states of the United States, from where slavery expanded with the westward movement of population.[111] Historian Peter Kolchin wrote, "By breaking up existing families and forcing slaves to relocate far from everyone and everything they knew" this migration "replicated (if on a reduced level) many of [the] horrors" of the Atlantic slave trade.[112]

Historian Ira Berlin called this forced migration the Second Middle Passage. Characterizing it as the "central event" in the life of a slave between the American Revolution and the Civil War, Berlin wrote that whether they were uprooted themselves or simply lived in fear that they or their families would be involuntarily moved, "the massive deportation traumatized black people, both slave and free."[113]

Lady in litter being carried by her slaves, province of São Paulo in Brazil, ca.1860.

By 1860, 500,000 slaves had grown to 4 million. As long as slavery expanded, it remained profitable and powerful and was unlikely to disappear. Although complete statistics are lacking, it is estimated that 1,000,000 slaves moved west from the Old South between 1790 and 1860.[114]

Most of the slaves were moved from Maryland, Virginia, and the Carolinas. Michael Tadman, in a 1989 book Speculators and Slaves: Masters, Traders, and Slaves in the Old South, indicates that 60–70% of interregional migrations were the result of the sale of slaves. In 1820 a child in the Upper South had a 30% chance to be sold south by 1860.[114]

Middle East

Main article: Arab slave trade
See also: Slavery (Ottoman Empire), Islam and slavery, and Slavery on the Barbary Coast
Persian slave in the Khanate of Khiva, 19th century

According to Robert Davis between 1 million and 1.25 million Europeans were captured by Barbary pirates and sold as slaves in North Africa and Ottoman Empire between the 16th and 19th centuries.[115][116] There was also an extensive trade in Christian slaves in the Black Sea region for several centuries until the Crimean Khanate was destroyed by the Russian Empire in 1783.[47] In the 1570s close to 20,000 slaves a year were being sold in the Crimean port of Kaffa.[117] The slaves were captured in southern Russia, Poland-Lithuania, Moldavia, Wallachia, and Circassia by Tatar horsemen in a trade known as the "harvesting of the steppe". In Podolia alone, about one-third of all the villages were destroyed or abandoned between 1578 and 1583.[118] Some researchers estimate that altogether more than 3 million people were captured and enslaved during the time of the Crimean Khanate.[119][120] It is estimated that up to 75% of the Crimean population consisted of slaves or freedmen.[77]

A slave market in Algiers. XVIIth (c.1684)
Vernet: Slave market (1836)

The Arab slave trade lasted more than a millennium.[121] As recently as the early 1960s, Saudi Arabia’s slave population was estimated at 300,000.[122] Along with Yemen, the Saudis abolished slavery only in 1962.[123] Slaves in the Arab World came from many different regions, including Sub-Saharan Africa (mainly Zanj),[124] the Caucasus (mainly Circassians),[125