Religion
In reply to the discussion: Religious women push lawmakers to investigate Kavanaugh, suspend confirmation [View all]qazplm135
(7,508 posts)If you are defining religion uber-broadly then sure, slavery and religion are roughly the same age.
But there's no real tie between them to say one begets the other, and again I don't think if religion got stalled in our developmental timeline, that slavery would have waited for religion to bounce into the heads of folks.
Power of the strong over the weak is a natural thing. We see it in nature. We see animals that enslave other animals (ants for example). We see hierarchy as a fundamental component of highly organized social animals.
Religion has played every role in the slavery business. It encouraged it and justified it in some cases (many cases) and it fought against it and decried it in other cases (too few and fairly recent). I'm sure it participated in it as well.
But the reality is that mankind and civilization is a slow process. It took us and is still taking us a long time to figure out how to ethically act towards each other. We still haven't figured it out. And the default setting is basically strong v the weak.