The transatlantic slave trade was one of the largest and most brutal systems of chattel slavery in human history. It began in the early 1500s, when European powers such as Portugal and Spain first transported enslaved Africans to colonies in the Americas. Over time, Britain, France, the Netherlands, and others became deeply involved.
African men, women, and children were captured through raids, wars, or purchased from African rulers who traded captives. Once taken, they were forced onto ships bound for the Americas in what became known as the Middle Passage. Conditions on these voyages were horrific: people were chained together in cramped, unsanitary holds, with disease, starvation, and abuse leading to extremely high death rates.
Those who survived were sold at ports in the Caribbean, Brazil, North America, and elsewhere. Major markets included places like Jamaica, Havana, Charleston, and Bahia. Enslaved Africans were bought by plantation owners to work in sugar, tobacco, coffee, and cotton production; industries that drove European wealth. Others ended up in domestic service or as laborers in mines.
The system operated for more than 300 years. It is estimated that over 12 million Africans were transported across the Atlantic, though millions more died in capture or transit. Families were deliberately separated, individuals were branded and treated as property, and punishments for resistance could include whipping, mutilation, or execution.
Enslavers rationalized this inhumane system by creating racial hierarchies that dehumanized Africans, embedding racism into the foundation of Atlantic societies. Generations were born into slavery, with no legal rights or hope of freedom.
Abolition came gradually. Denmark outlawed the trade in 1803, Britain in 1807, and the United States in 1808. Full emancipation of enslaved people followed decades later; Britain in 1833, France in 1848, and the United States in 1865 after the Civil War. Brazil, the last major slave-holding nation in the Americas, abolished slavery in 1888.
The transatlantic slave trade left deep scars on Africa, the Americas, and Europe, shaping economies, societies, and racial divisions that persist today. It remains one of the most devastating examples of human exploitation in world history.