This is from BBC: http://www.bbc.co.uk/religion/religions/islam/history/slavery_1.shtml
How Islam moderated slavery
Islam's approach to slavery added the idea that freedom was the natural state of affairs for human beings and in line with this it limited the opportunities to enslave people, commended the freeing of slaves and regulated the way slaves were treated:
The paradox
A poignant paradox of Islamic slavery is that the humanity of the various rules and customs that led to the freeing of slaves created a demand for new slaves that could only be supplied by war, forcing people into slavery or trading slaves.
Muslim slavery continued for centuries
The legality of slavery in Islam, together with the example of the Prophet Muhammad, who himself bought, sold, captured, and owned slaves, may explain why slavery persisted until the 19th century in many places (and later still in some countries). The impetus for the abolition of slavery came largely from colonial powers, although some Muslim thinkers argued strongly for abolition.
----------------------------------------------------------------------------------
The below is from wikipedia:
The Qur'an accepts the institution of slavery. It may be noted that the word 'abd' (slave) is rarely used, being more commonly replaced by some periphrasis such as ma malakat aymanukum ("that which your right hands own"). The Qur'an recognizes the basic inequality between master and slave and the rights of the former over the latter. The historian Brunschvig states that from a spiritual perspective, "the slave has the same value as the free man, and the same eternity is in store for his soul; in this earthly life, failing emancipation, there remains the fact of his inferior status, to which he must piously resign himself."[4] [15] The Qur'an also recognizes concubinage.[16][17] A master may take his female slave as his concubine and, if she is a Muslim, he can marry her. Abstinence however is said to be a better choice.[3] The Qur'an urges, without commanding, kindness to the slave[18] and recommends, their liberation by purchase or manumission. The freeing of slaves is recommended both for the expiation of sins,[19] and as an act of simple benevolence.[20] It exhorts masters to allow slaves to earn or purchase their own freedom (manumission contracts).[16]
Slaves are mentioned in at least twenty-nine verses of the Qur'an, most of these are Medinan and refer to the legal status of slaves. The legal material on slavery in the Qur'an is largely restricted to manumission and sexual relations.[3] According to Sikainga, the Qur'anic references to slavery as mainly contain "broad and general propositions of an ethical nature rather than specific legal formulations."[21]
The Quran accepts the distinction between slave and free as part of the natural order and uses this distinction as an example of God's grace
How Islam moderated slavery
Islam's approach to slavery added the idea that freedom was the natural state of affairs for human beings and in line with this it limited the opportunities to enslave people, commended the freeing of slaves and regulated the way slaves were treated:
- Islam greatly limited those who could be enslaved and under what circumstances (although these restrictions were often evaded)
- Islam treated slaves as human beings as well as property
- Islam banned the mistreatment of slaves - indeed the tradition repeatedly stresses the importance of treating slaves with kindness and compassion
- Islam allowed slaves to achieve their freedom and made freeing slaves a virtuous act
- Islam barred Muslims from enslaving other Muslims
The paradox
A poignant paradox of Islamic slavery is that the humanity of the various rules and customs that led to the freeing of slaves created a demand for new slaves that could only be supplied by war, forcing people into slavery or trading slaves.
Muslim slavery continued for centuries
The legality of slavery in Islam, together with the example of the Prophet Muhammad, who himself bought, sold, captured, and owned slaves, may explain why slavery persisted until the 19th century in many places (and later still in some countries). The impetus for the abolition of slavery came largely from colonial powers, although some Muslim thinkers argued strongly for abolition.
----------------------------------------------------------------------------------
The below is from wikipedia:
The Qur'an accepts the institution of slavery. It may be noted that the word 'abd' (slave) is rarely used, being more commonly replaced by some periphrasis such as ma malakat aymanukum ("that which your right hands own"). The Qur'an recognizes the basic inequality between master and slave and the rights of the former over the latter. The historian Brunschvig states that from a spiritual perspective, "the slave has the same value as the free man, and the same eternity is in store for his soul; in this earthly life, failing emancipation, there remains the fact of his inferior status, to which he must piously resign himself."[4] [15] The Qur'an also recognizes concubinage.[16][17] A master may take his female slave as his concubine and, if she is a Muslim, he can marry her. Abstinence however is said to be a better choice.[3] The Qur'an urges, without commanding, kindness to the slave[18] and recommends, their liberation by purchase or manumission. The freeing of slaves is recommended both for the expiation of sins,[19] and as an act of simple benevolence.[20] It exhorts masters to allow slaves to earn or purchase their own freedom (manumission contracts).[16]
Slaves are mentioned in at least twenty-nine verses of the Qur'an, most of these are Medinan and refer to the legal status of slaves. The legal material on slavery in the Qur'an is largely restricted to manumission and sexual relations.[3] According to Sikainga, the Qur'anic references to slavery as mainly contain "broad and general propositions of an ethical nature rather than specific legal formulations."[21]
The Quran accepts the distinction between slave and free as part of the natural order and uses this distinction as an example of God's grace