The Bahá'í Faith in Iran is the country's second-largest religion after Islam and the birthplace of the three central figures of the religion – The Báb, Bahá'u'lláh and `Abdu'l-Bahá. The early history of the religion in Iran covers the lives of these individuals, their families and their earliest prominent followers: the Letters of the Living, the Apostles of Bahá'u'lláh and later some of the Disciples of `Abdu'l-Bahá and Hands of the Cause. In the 19th century conversions from Judaism and Zoroastrianism are well documented - indeed such a change of status removing legal and social protections.