Mírzá Husayn-`Alí (Persian: میرزا حسینعلی) (b: 1817 - d: 1892), who later took the title of Baháʼu'lláh (Arabic: بهاءالله "Glory of God") was the founder-prophet of the Baháʼí Faith.
He claimed to fulfill the Bábí prophecy of "He whom God shall make manifest", but in a broader sense he also claimed to be the "supreme Manifestation of God" referring to the fulfillment of the eschatological expectations of a prophetic cycle beginning with Adam, and including Abrahamic religions, as well as Zoroastrianism, the great Dharmic religions, and others. Baháʼís see Baháʼu'lláh as the initiator of a new religion, as Jesus or Muhammad — but also the initiator of a new cycle, like that attributed to Adam.
During his lifetime, Baháʼu'lláh left a large volume of writings. The Kitáb-i-Aqdas, and the Kitáb-i-Íqán (Book of Certitude) are recognized as primary Baháʼí theological works, and the Hidden Words and the Seven Valleys as primary mystical treatises.