as a form of atheism and novel superstitio. The Romans are known for the great number of deities they honoured, a capacity that earned the mockery of early Christian polemicists. As the Romans extended their dominance throughout the Mediterranean world, their policy, in general, was to absorb the deities and cults of other peoples rather than try to eradicate them. One way that Rome promoted stability among diverse peoples was by supporting their religious heritage, building temples to local deities that framed their theology within the hierarchy of Roman religion. Inscriptions throughout the Empire record the side-by-side worship of local and Roman deities, including dedications made by Romans to local gods. By the height of the Empire, numerous cults of pseudo-foreign gods (Roman reinventions of foreign gods) were cultivated at Rome and in the provinces, among them cults of Cybele, Isis, Epona, and of solar gods such as Mithras and Sol Invictus, found as far north as Roman Britain. Because Romans had never been obligated to cultivate one god or one cult only, religious tolerance was not an issue in the sense that it is for competing monotheistic systems. Mystery religions, which offered initiates salvation in the afterlife, were a matter of personal choice for an individual, practiced in addition to carrying on one's family rites and participating in public religion. The mysteries, however, involved exclusive oaths and secrecy, conditions that conservative Romans viewed with suspicion as characteristic of "magic", conspiracy (coniuratio), and subversive activity. Sporadic and sometimes brutal attempts were made to suppress religionists who seemed to threaten traditional morality and unity. In Gaul, the power of the druids was checked, first by forbidding Roman citizens to belong to the order, and then by banning druidism altogether. At the same time, however, Celtic traditions were reinterpreted (interpretatio romana) within the context of Imperial theology, and a new Gallo-Roman religion coalesced, with its capital at the Sanctuary of the Three Gauls in Lugdunum (present-day Lyon, France). The sanctuary established precedent for Western cult as a form of Roman-provincial identity. The monotheistic rigour of Judaism posed difficulties for Roman policy that led at times to compromise and the granting of special exemptions. Tertullian noted that the Jewish religion, unlike that of the Christians, was considered a religio licita, "legitimate religion." Wars between the Romans and the Jews occurred when conflict, political as well as religious, became intractable. When Caligula wanted to