From the birth of the Bahá’í Revelation in a subterranean dungeon in Ṭihrán where its Author was confined in 1852, the Faith of Bahá’u’lláh has rapidly grown, in ever-widening circles, beyond the social and religious matrix of its inception. Among the first individuals outside the Islamic community to be attracted to its teachings, presaging the flow of people of all faiths and origins into its universal embrace, were Zoroastrians in Persia and India. To this group Bahá’u’lláh addressed a number of Tablets, several of which are presented here for the first time in full authorized translations.