Slavery is a horror that has cursed the entire world since prehistoric times. It is present in the world today. Greek Civilization, that we love to admire, was based on slavery. So were Chinese, African, and Aztec; it's not only Western, you know.
It has long been an unwritten but accepted rule of war that the victor can have their way with the loser. This goes back many thousands of years. It is absolutely not a western invention.
I fully realize that..
That's why I said "world wide"..
While your opinion on slavery is most admirable, it wasn't the point..
The point was, you can't blame Rome for slavery..
It was already there, and an accepted practice...