Slavery and the Atlantic Slave Trade in West and Central Africa

Slavery existed in many parts of the world long before the Atlantic slave trade began. Different societies used different systems of forced labor, and slavery did not work the same way everywhere.

In parts of Africa, people could become enslaved after being captured in war, because of debt, or as punishment for certain crimes. Some enslaved people worked in households, agriculture, armies, or other occupations. Their conditions and legal status varied from one society to another. These systems were harmful and denied people freedom, but they were not identical to the system that later developed across the Atlantic.

Beginning in the 1400s, Portuguese sailors established regular contact and trade along the Atlantic coast of Africa. Other European powers later joined them.

At first, Europeans sought goods such as gold, ivory, and spices. As European colonies expanded in the Americas, however, plantation owners demanded enormous amounts of labor to produce sugar, tobacco, cotton, and other crops.

That demand helped drive the growth of the Atlantic slave trade.

European merchants purchased enslaved Africans from African rulers and traders and sometimes participated in raids and warfare. Within Africa, conflicts and political competition also contributed to the capture and sale of people. The system involved people and states on several continents, but European colonial economies created an enormous overseas demand for enslaved labor.

Millions of Africans were forced from their homes and transported toward the Atlantic coast. Many came from West and Central Africa.

Captives were held at trading centers before being placed aboard ships. The voyage across the Atlantic Ocean became known as the Middle Passage. Conditions aboard the ships were brutal. People were crowded into small spaces, given inadequate food and water, exposed to disease, and subjected to violence. Many died before reaching the Americas.

Those who survived were sold into slavery in European colonies. In much of the Americas, slavery became a system of racialized chattel slavery. Enslaved people were legally treated as property, and their enslaved status was often passed from parents to children.

Enslaved Africans resisted in many ways. Some escaped, rebelled, protected cultural traditions, formed communities, or fought against the system. Their knowledge, labor, languages, religions, foods, music, and other cultural traditions also became important parts of societies throughout the Americas.

The Atlantic slave trade lasted for centuries and removed millions of people from African societies.

Its effects were not the same everywhere. Some rulers and merchants gained wealth or weapons through participation in the trade, while other communities experienced raids, warfare, population loss, or political disruption. Competition for control of trade could increase conflict among states and communities.

The trade also changed economic relationships. In many places, capturing and selling people became tied to larger Atlantic trading networks. European merchants exchanged manufactured goods and weapons for captives and other products, while plantation goods produced by enslaved labor traveled from the Americas to Europe and other markets.

The result was an increasingly interconnected Atlantic economy built in significant part on forced labor.

Beginning in the late 1700s and early 1800s, movements opposing the slave trade grew in Europe and the Americas. Enslaved and formerly enslaved people played important roles in resisting slavery and calling for freedom. Britain abolished its participation in the Atlantic slave trade in 1807, and other countries also passed laws against the trade.

Ending the trade did not immediately end slavery. Illegal trafficking continued, and slavery remained legal in parts of the Americas for decades.

The Atlantic slave trade left lasting effects on West and Central Africa, the Americas, and Europe. It changed populations, political relationships, economies, and cultures across the Atlantic world. Understanding those effects requires remembering that African societies already had their own kingdoms, economies, and trade networks before Atlantic slavery expanded.