The capture, enslavement, and exchange of Indigenous peoples of the Americas predates contact between Indigenous Americans, Europeans, and Africans. Indigenous Americans incorporated captives into diverse communities in culturally specific ways that varied along a spectrum from chattel slaves to adopted kin. Upon contact with Europeans and Africans, the demand for Indigenous captives increased vertiginously to satisfy Europeans seeking laborers to exploit as workers and as a means to realize profits in Atlantic markets. Alongside European demands for captives, Indigenous peoples pursued captives to sell to Europeans or adopt to replace loved ones lost to disease, warfare, and slavery. The variation and persistence of Indigenous slavery in the Atlantic was shaped by the adaptation of various culturally specific Indigenous forms of captivity in North and South America toward commodified forms of bondage that had been developed on Atlantic islands and the West coast of Africa. In numerous locales in the Americas—such as the Caribbean, Mexico, Brazil, and Carolina—Indigenous slavery came to define labor relations between Europeans and Indigenous peoples after contact only to be replaced by the importation of millions of enslaved Africans.
As the importation of enslaved Africans increased, Indigenous slavery became a labor strategy employed in borderlands between colonial and Indigenous communities. Colonists who could not secure the capital or access to merchants necessary to import enslaved Africans often turned to Indigenous slavery for their physical, domestic, and sexual labor needs. Indigenous communities exchanged captives for European commodities. This allowed for further acquisition of captives deep into the interior of the Americas through the exchange of European commodities or the use of European firearms in captive raids. Colonists frequently employed Indigenous slavery as a colonial strategy in competition with the desires of European imperial policies. With the monopolization of African slavery around Asiento contracts that supplied designated annual numbers of enslaved Africans to Spanish America and elsewhere, European imperial policy came to prioritize merchants who signed those contracts and the taxation, importation, and exportation of enslaved Africans. Colonial metropoles specifically outlawed the enslavement and exchange of Indigenous peoples unless captives were taken under specific conditions: frequently defined in Iberian colonies by “just wars,” ransoms, and accusations of real or imagined cannibalism. Colonists also employed Indigenous slavery as a means of displacement and removal of Indigenous populations, as can be seen in the exportation of Indigenous communities from English colonial possessions in New England, Virginia, and Carolina and in French Louisiana. Colonists and Indigenous slavers quickly learned how to exploit colonial stipulations against the enslavement of Indigenous peoples to blur the sources and nature of captives’ bondage as in Brazil, the Guianas, and New Mexico. The clandestine and illicit nature of Indigenous slavery resulted in the development of variable, adaptable, and persistent forms of Indigenous slavery that in certain forms still can be seen through the exploitation of vulnerable populations that exemplifies modern slavery.