Guest commentary by Postmodern Conservative.
Islam expert Robert Spencer writes in First Things how it is unacknowledged that "Christian principles played" a big role in the abolition of slavery in the West, which was "an enterprise unprecedented in the annals of human history." By contrast,
Slavery was taken for granted throughout Islamic history, as it was, of course, in the West as well up until relatively recent times. Yet while the European and American slave trade get lavish attention from historians... the Islamic slave trade actually lasted longer and brought suffering to a larger number of people.... There is evidence that slavery still continues beneath the surface in some majority-Muslim countries as well... ("Slavery, Christianity, and Islam").