Baha’i faith from Encyclopædia Britannica:

religion founded in Iran in the mid-19th century by Mirza Hoseyn ‘Ali Nuri, who is known as Baha’ Ullah (Arabic: “Glory of God”). The cornerstone of Baha’i belief is the conviction that Baha’ Ullah and his forerunner, who was known as the Bab, were manifestations of God, who in his essence is unknowable. The principal Baha’i tenets are the essential unity of all religions and the unity of humanity. Baha’is believe that all the founders of the world's great religions have been manifestations of God and agents of a progressive divine plan for the education of the human race. Despite their apparent differences, the world's great religions, according to the Baha’is, teach an identical truth. Baha’ Ullah's peculiar function was to overcome the disunity of religions and establish a universal faith. Baha’is believe in the oneness of humanity and devote themselves to the abolition of racial, class, and religious prejudices. The great bulk of Baha’i teachings is concerned with social ethics; the faith has no priesthood and does not observe ritual forms in its worship.