Earlier quoted context omitted.
>Rome: chiefly the lack of racial rationalization for the institution Interesting thought indeed. If I were to settle into my historian armchair and speculate, I would say that it had to do with the following: In the Roman and many contemporary ethos, ruling based on strength was considered the natural order. Countries might war over competitive interests and by right of victory, gained the possessions of the conquer…
> ruling based on strength was considered the natural order. Indeed. Athens vanquished Myteline in the Peloponnesian war and offered just this as justification. After Thuycidides, doubtless this was an increasingly bankrupt claim and so had to become more subtle. > ... Roman's weren't racist, they were. Were they? At base the poor modern idea of "race" is probably best rendered scientifically as "phenotype". In the c…
New peoples/ethnic groups basically sprung up from localized subcultures. But the whole process could easily take many generations. We read about it comfortably in the sources because oral history of that ethnogenesis ended up being recorded in myths, and we can factor out the commonalities. Really though, it was no quicker or easier back then than it would be today.
> was a quite different institution than what we think of today
I'm not sure I would agree about this. If you asked me about a significant difference, I would have to point to just how normalized it was within the ancient world. Pretty much every group practiced it. That's why the idea of a 'justification' of it from nature was probably not even taken all that seriously, even by those who thought about the issue. Ultimately, the Stoics were the most consistent in wanting to mitigate it, and their main concern was the slave's overall welfare within the arrangement, not necessarily some abstract idea of freedom. Naturally, increased freedom could be a side effect of such changes. (Of course, as is reasonably well known, there was no similar reforming impulse in the U.S. prior to abolition proper.)