This variety of uses to which slaves were put illustrates clearly the degree to which medieval colonial slavery served as a model for Atlantic colonial slavery. Slave manpower had been employed in the Italian colonies in the Mediterranean for all the kinds of work it would be burdened with in the Atlantic colonies. The only important change was that the white victims of slavery were replaced by a much greater number of African Negroes, captured in raids or bought by traders.

Cedric J. Robinson, Black Marxism_ The Making o…, loc. 188