EntityQ16968540· pop 5· linked from 279 articlesReverse Underground RailroadSign in to savepractice of putting people (back) into slavery in the United StatesConnectionshistory of slaveryEntityBlack Sea slave tradeEntityThirteenth Amendment to the United States ConstitutionEntityIslamic views on slaveryEntityslave stateEntityBarbary slave tradeEntityblackbirdingEntitySlave breeding in the United StatesEntityfugitive slaves in United StatesEntityHuman trafficking in the United StatesEntityslavery in SomaliaEntityTreatment of slaves in the United StatesEntityslavery in ZanzibarEntityMexicoCountryLiberiaCountrySierra LeoneCountryNew YorkEntityIllinoisEntityPennsylvaniaEntityMarylandEntityCategories1780 establishments in the United States1865 disestablishments in the United StatesKidnapping in the United StatesSlave raidsSlavery in the United StatesSlave trade in the United States