You don't have any idea what you are speaking about. The only historical source for equal rights is the bible. There is no other source. Without Jews and Christians the world where we live in is unthinkable, is even unimaginable.
Slavery was condoned
Let a drunkard drink his wine, Proverbs.
Condoned? ... Makes no sense to say so.
in both the NT and the OT. Women to this day can not become priests. People who don't believe go straight to hell according to it. The only real theocracies today are some of the most unequal societies there are. So pray tell what Bible have you read?
'Slavery' is a very special American problem. This form of slavery did never exist in Europe. It is imperialism and colonialism which produced it. The slavery of Egypt for example is very similar - but this slavery is a slavery of the government of death. The Egypt culture was a culture of death - so this is also not comparable. Nevertheless the son of the Pharao - Moses - brought the slaves to freedom. In case of America greed for gold in Europe produced slavery there - but not in Europe itself. It is a very complex theme. From my point of view slavery has no chance in a Christian society because it is just simple not important. I'm able for example to imagine a Christian and his slave who is a Christian too. The slave is sick: What will happen now? The "master" will do the work of the slave, the work of his beloved brother. Very easy. Even if no one doubts in ths social structure "slavery", slavery is not really compatible with the Christian faith.