It was a time of partial Jewish autonomy. As "dhimmis", "protected non-Muslims", Jews in the Islamic world paid the jizya, which was administered separately from the zakat paid by Muslims. The jizya has been viewed variously as a head tax, as payment for non-conscription in the military (as non-Muslims were normally prohibited from bearing arms or receiving martial training) or as a tribute. Jews had their own legal system and social services. monotheist religions of the People of the Book were tolerated but conspicuous displays of faith, such as bells and processions, were discouraged.