One interesting angle to view this from is the early Christian era of Rome. The Roman Empire was strongly reliant on slave labor. But the practices and laws regarding slavery began to change in the late era and into Byzantium as Christianity emerged as a force within the empire. Christians were certainly not comfortable with other Christians being held as slaves, but were they as opposed to others in slavery, I'm not sure.
Why is it so?
~Julius Sumner Miller
~Julius Sumner Miller