Christianity Has No Moral Authority

Modern society generally is in agreement that owning another person (slavery) is immoral. How did humanity finally come to this consensus? Was it through the authority of the major religions of the world? What about Christianity? Click on the link below for an hour-long video exposing the immorality of Christianity regarding this topic, and how slavery was ended by humanistic thinking rebels from religious authority. 

I wonder how much human history would have changed if one of the 10 Commandments stated, "Thou shall not own another human." Of course, there are many other immoral aspects of Christianity, but that is for other posts.

How We Learned That Slavery is Wrong