Treatment of humans as subhuman

Recognition of humans as animals
The enemy of the human race, who opposes all good deeds in order to bring men to destruction, beholding and envying this, invented a means never before heard of, by which he might hinder the preaching of God's word of Salvation to the people: he inspired his satellites who, to please him, have not hesitated to publish abroad that the Indians of the West and the South, and other people of whom We have recent knowledge should be treated as dumb brutes created for our service, pretending that they are incapable of receiving the Catholic Faith. (Papal Encyclical, Sublimus Dei 29 May 1537).
The said Indians and other peoples should be converted to the faith of Jesus Christ by preaching the word of God and by the example of good and holy living. (Papal Encyclical, Sublimus Dei 29 May 1537).
Aggravated by 
(F) Fuzzy exceptional problems