About the Arab/Muslim point made by Teribus. It is a sad but true fact that Arabs/Muslims have had a greater impact on slavery throughout the years than have Western Europeans. More Sub Saharan African slaves were taken to North Africa, and over the Red Sea than were taken to the Americas, and the 'Barbary States' of Algiers and Tripoli, nominally part of the Ottoman Empire but in fact independent sultanates preying on the coasts and shipping of the Mediterranean that brought about the efforts to free the 'white slaves' after the Napoleonic Wars. Prior to this they had raided the coasts of the British Isles to capture slaves. These are often referred to as 'galley slaves' because some of them - the adult males - were used for that purpose. The Greeks suffered badly from being part of the Ottomon Empire, as the view was that any 'unbeliever' (non-Muslim)could be enslaved.

As to what people are doing about slavery today, can I urge you yet again to look at the links I provided earlier in the thread.