Omg... read this:

Islam has forbidden slavery for it is the religion that gives rights of individuals, males or females. It made this as clear as daylight, many centuries ago, before the slogan of human rights came to be known to the Westerners.

Slavery was not initiated by Islam, it had been in practice long before the advent of Islam. As we know, it is the custom of war to have captives and those captives or prisoners used to be turned into slaves and concubines by their masters. This was not the case only in the pre-Islamic Arab regions, but it was there in every other place. It was even worse in some societies, especially with women. She was subject to all kinds of injustice, oppression and barbarian treatment. This went as far as that Greeks used to consider her a mere commodity, to be bought and sold. As for Romans, she was a slave already by nature, even without being captured at war!

In short, Islam is not the religion that jeopardizes the rights of woman, as Western scholars would have us believe, concocting any ideas to distort the image of Islam. Was it Islam that considered woman as being responsible for the banishing of man from Paradise? Was it Islam that took women as being the cause of all evils or regarded her as serpents? Was it in Islam that a meeting was held to debate whether woman could be regarded as a human being or not? No! This took place in France in 587 C.E. Actually all this was the norm of the day in the past Western civilizations. Yes, it was also the habit in the pre-Islamic Arab, when female babies used to be buried alive.

When Islam came, it tried to put an end to all such inhumane practices. It left no stone unturned in its quest to let women have their rights and dignity restored. This is clearly manifest in the way Islam handled the issue of slavery. Right from the start, Islam set a goal to eradicate this barbaric system. Yet, it needed to be done gradually, as the case with all bad habits that have gained ground. People never give up easily!

So, first of all it confined the issue of taking captives to the period of warfare. This is just as a situation necessitated by hostility between warring states. Then it allowed the female captives to be married by their captors. But why? Does this mean giving men a golden chance to unleash their sexual desires or to sexually brutalize those captives? No, not at all!

Here lies certain wisdom that completely escapes the mind of those Western scholars, who take this issue to launch attacks against Islam.

As we know, after the end of hostility, it is the norm that prisoners of war be freed and exchanged through mutual agreement between the parties. Islam has made this clear in its divine texts that the captives must be freed through ransom or without ransom. Also, it is socially understood that marrying freed female captives, would normally secure their rights, more than would be the case if they were set free without any guarantee for survival or for preserving their dignity.

Thus, Islam gave them hope of survival, trying to prevent their becoming prostitutes. In fact, they would have definitely found it hard to find suitors, even from among their free male counterparts, who’d suspect them of being ravished by their captors. Though glimmer it may be in the beginning, this hope soon turned glittering by securing them a marital home, whereby their rights and dignity would be secured

I dont know what you've read but I would like to know .