.early human slavery was NECESSARY for human progress
It's an extreme waste of resources. Those keeping the slaves have to devote themselves entirely to this endeavour. They add nothing of value to the economy. The slaves have zero incentive apart from punishment, to work harder. Slavery is purely a net loss for everyone. Even the slavers. I can't think of anything that hinders progress as much as slavery.
There are theories that the fall of the Roman Empire was due to their slave economy. The barbarians had relatively more egalitarian societies, and therefore greater technological and economic progress. Eventually they overtook Rome.
early human did not invented money and no one work for other people
Early humans were cooperative hunter gatherers that did not enslave each other. Humans transitioned from hunter gatherers to farmers without the need to enslave each other. Due to the extremely financially destructive nature of slavery, it can only exist in already fairly advanced economies. So it's silly to think that slavery is required for it. Only a minor part of a population can be slaves at any one time. So most of the economy will always be a non-slave economy. We have no examples from history that any technological innovation has sprung from the slave part of any slave-economy.
so without man power human could not make progress
Sources?
all past GREAT civilization built on slave workers
Today we know that the Egyptian pyramids were built by free paid labourers. The Inca Mit'a was slave labour, but it was only temporary. Like being in army.
Why only focus on the past? Isn't the Koran supposed to be a good guide today, as well? I think the Western civilisation is great, and that isn't built on slaves at all. No slave was involved in building the iPhone.
slavery responsible for civilizing human
I don't think slavery is evidence of civilisation at all. Rather the opposite.
allah did NOT condemn slavery because of that reason but make a way to abolish slavery by freeing them
since allah is all knowing, he knows that human slavery is responsible for civilizing human, so allah cant condemn something that civilized human
Or more likely Medieval Arabia had a slave economy. If Mohammed would have any hope in converting people he'd have to adapt his message to condone slavery. Otherwise Islam would not have caught on. Now of course when slavery is out of fashion, perhaps it's time to update the Koran?
Allah is certainly great at being invisible. It's almost like he doesn't even exist... almost.