The report stressed, however, that the difficulty in making a legal claim to compensation "cannot be the basis for nullifying the existence of underlying legal obligations".
The notion of paying reparations or making other amends for slavery has a long history but the movement has recently gained momentum worldwide amid growing demands from African and Caribbean countries.
The EU said in July that Europe's slave-trading past inflicted "untold suffering" on millions of people and hinted at the need for reparations for what it described as a "crime against humanity".
The report concluded that states should consider a "plurality of measures" to address the legacies of enslavement and colonialism, including pursuing justice and reparations, and contributing to reconciliation.
Reporting by Gabrielle Tétrault-Farber; Editing by Richard ChangOur Standards: The Thomson Reuters Trust Principles.
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Duke, Duchess, Gilbert Bellamy, Antonio Guterres, Gabrielle Tétrault, Farber, Richard Chang
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