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Whether Spain only or Spain and Portugal is immaterial. Further, there is no teaching of the Church here – as though we have dogma or doctrine to the whole Church on faith or morals – a truth all should know by now.Thorolfr #1117
Dum Diversas actually authorized the Portuguese monarchy, not the Spanish one
We have seen categorically the reality of the Church’s fight against slavery, with emancipated slaves becoming Popes in the 2nd and 3rd centuries, and we know that the Muslims have always tried to destroy Christian civilization.
So this analysis is worth noting.
Is Dum Diversas real?
What we need to understand here is the context. This bull was written at a time of severe Muslim persecution of Christendom - Byzantine/Constantinople was under threat of attack and takeover by Muslims. In fact it was written just one year before the Muslims defeated Christian Byzantine (100-200K invaders against a mere 8,000 or so defenders). To give a context let me say that the Muslim invaders looted, pillaged and slaughtered Christians for a number of days before giving the few hiding survivors terms for their subjugation and homage if they surrendered as vassals to Islam.
The call by Pope Nicholas V (who authored this bull) was to rally Christendom to come to the aid of its members and confront Islam (the Saracens and pagan mercenaries they gained by conquering W. African pagan countries) head on. But he failed to get the European Kings to help and that is why Byzantine fell. This bull was directed to the Spanish only and was an authorization to engage the conquering Muslims and make war with them to stop their encroachment and aggression and conversion of Pagan Africa into homage by providing a quota of men of war - mercenaries . It was a time of war and at this time the Church had a definate voice of influence in government secular affairs and had to assert itself to defend innocent lives being slaughtered by the Muslim hordes. The pope uses the language and emotion of the day. Christians were terrorized by what looked like Satan himself waging war against Christendom. So the pope authorized the taking of prisoners of war and their enslavement/incarceration as a life sentence for crimes against Christendom. This is a mercy since the war convention at the time was to kill enemies due to the high cost of maintaining them and guarding or else holding the noble ones (knights/lords) as hostage for payment from their Christian families.
This bull was not a general edict to enslave people willy-nilly. It was no different than giving a life sentence to criminals with hard labor to pay back society as we still do to this very day here in the USA.
Bottom Line - *Dum Diversas *was a real papal bull but it in no way is a general endorsement of slavery. It is simply an authorization to the Spanish monarchy to engage the aggressor enemy of Christians in a “just war” and to take any survivors as prisoners and incarcerate them for life for their crimes against Christianity. It was all issued at a time when the Church was trying hard to rally Christendom out of its apathy to help defend our eastern Christian brothers from being defeated.
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