A Spanish Dominican priest whose activism in behalf of Indians led to the reform of the Encomienda system. His multi-volume work, History of the Indies, documented Indian Culture and the devastating effects of the Encomienda system, Humanized them and gave statistics of impact on Indians of the system. His writings helped to persuade Spain to implement the Repartimiento System in 1550, which limited the use of forced Indian labor, Limits slavery to men only and only 45 days/year that they can work along and were supposed to get wages. Although the Encomienda System was phased out, it was replaced by another system of forced labor that used African slaves, They tried Indian slave trade in Europe previously but they couldn't survive in the region