Sugar plantations in the Caribbean were a major part of the economy of the islands in the 18th, 19th, and 20th centuries. Most Caribbean islands were covered with sugar cane fields and mills for refining the crop. The main source of labor, until the abolition of chattel slavery, was enslaved Africans. After the abolition of slavery, indentured laborers from India, China, Portugal and other places were brought to the Caribbean to work in the sugar industry. These plantations produced 80 to 90 percent of the sugar consumed in Western Europe, later supplanted by European-grown sugar beet.

The Atlantic slave trade or transatlantic slave trade involved the transportation by slave traders of enslaved African people, mainly to the Americas. The outfitted European slave ships of the slave trade regularly used the triangular trade route and its Middle Passage, and existed from the 16th to the 19th centuries. The vast majority of those who were transported in the transatlantic slave trade were from Central and West Africa who had been sold by West African slave traders to European slave traders, while others had been captured directly by the slave traders in coastal raids; European slave traders gathered and imprisoned the enslaved at forts on the African coast and then brought them to the Americas. Except for the Portuguese, European slave traders generally did not participate in the raids because life expectancy for Europeans in sub-Saharan Africa was less than one year during the period of the slave trade. Portuguese coastal raiders found that slave raiding was too costly and often ineffective and opted for established commercial relations.