•Most Native American tribal groups practiced some form of slavery before the European introduction of African slavery into North America; but none exploited slave labor on a large scale. Indian groups frequently enslaved war captives whom they used for small-scale labor and in ritual sacrifice. Most of these so-called Indian slaves tended to live, however, on the fringes of Indian society. Although not much is known about them, there is little evidence that they were considered racially inferior to the Indians who held power over them. Nor did Indians buy and sell captives in the pre-colonial era, although they sometimes exchanged enslaved Indians with other tribes in peace gestures or in exchange for their own members. In fact, the word "slave" may not even accurately apply to these captive people.