  6. Slavery predates race. Throughout much of human history, societies have enslaved others, often as a result of conquest or war, even debt, but not because of physical characteristics or a belief in natural inferiority. Due to a unique set of historical circumstances, ours was the first slave system where all the slaves shared similar physical characteristics.   :rolleyes:  I think muslims kept blacks as a slaves long before white man did.. Yes, indeed. and race being a biological feature has always predated the  practice  of slavery, that claim is bogus.    If they claimed that Slavery predates the use of race as a factor for enslavement they could have a case, yet still there's the Arab slave trade centuries before whites discovered Africa in the 14th century... :rolleyes: