 For instance, the Mongol Empire, where Tengrism was the religion of the court, but not imposed on those ruled by the Mongols, the Achaemenid Empire and the Roman Empire before Constantine I, where regional clergies and practices were allowed to dominate as long as offerings were made to Roman Gods and tribute paid to Rome.Religious minorities are accorded differing degrees of tolerance under confessional states; adherents may or may not have a set of legal rights, and these rights may not be accessible in practice.For example, in medieval Europe Jewish people suffered various degrees of official and unofficial discrimination; during the same period in Islamic states, non-Muslims or dhimmi were legally inferior to Muslims but accorded certain protections.