Pre-modern Muslim rule was limited in that it did not possess the pervasive powers of the modern state. Bureaucracy and state administration were thin, mostly limited to urban sites, and largely confined to matters such as the army of the ruler, his assistants, tax collection and often land tenure. People were not registered at birth, had no citizenship status, and could travel and move to other lands and regions freely– there being no borders, no passports, no nationalities, and no geographic fixity to residential status. A Cairene family, for instance, could migrate to Baghdad without having to apply for immigration, and without having to show documentation at borders, because, as I said, there were neither borders (not fixed at any rate) nor passports in the first place.