By Islamic law, non-Muslim foreigners (
kafir) were by definition legitimate targets for enslavement, since the Muslim world of
dar al-Islam was by definition at war with the non-Muslim world of
dar al-harb ("House of War"), and non-Muslim war captives were legitimate to enslave. After capture, non-Muslim slaves were normally converted to Islam and given a new (Islamic) name. In the
Ottoman Imperial Harem during the era of
slavery in the Ottoman Empire, for example, the new
cariye slave girls and
concubines (sex slaves) were upon arrival customarily converted to Islam and given a new name, typically a Persian or Turkish name signifying the name of a flower or a bird, such as for example
Nilüfer ('water lily'). Since a person in Ottoman society was normally referred to by the name of their father after their personal name, female slaves, whose fathers were unknown and not Muslims, were given a paternal name associated with God, normally Abdallah: according to preserved records, 97 percent of female palace slaves at the Ottoman Imperial Harem were named
bint ('daughter of')
Abdallah. Example of this were
Gülbahar Hatun (mother of Selim I). The discovery of inscriptions (
vakfiye) and others documents, where she was called
Ayşe Gülbahar bint Abdüllah, proves that she had Christian slave origins, since this is the traditional slave name by which slaves who converted to Islam were indicated. ==United States==