To further define subjects of the Ottoman Empire, new nationality legislation was passed in 1869 (tâbiiyet-i osmaniye kanunnamesi, Ottoman Nationality Law). The law specified terms for the acquisition and loss of who was within the sovereignty of the empire, rather than the domestic obligations and rights of citizenship. It described who was a subject, owing allegiance, and made provisions for wives, children, emigrants and immigrants. Under its terms, children derived nationality from their fathers, foreigners born in the territory could acquire nationality at majority, and foreigners born elsewhere could obtain nationality after five years residency within the imperial realm. Specific provisions included that foundlings discovered within the territory; stateless persons living in the empire; Muslim women, who despite the ban on such marriages, had married Persian men and the children of such a union; unregistered persons who had not been counted in the Ottoman census, either because no census was taken or their births were unregistered, were all considered to be Ottoman. Foreign women acquired Ottoman nationality through marriage, but could return to their original nationality upon the death of their spouse. Nationality could also be granted based on special contribution or service to the nation. Dual nationality was permitted, but was discouraged, as the government could choose not to recognize naturalization of an Ottoman subject by another state.
