Baha'is are followers of the Baha'i Faith, a monotheistic religion founded in the mid-19th century by Baha'u'llah in Persia, which emphasizes the unity of all religions and humanity. The faith advocates for principles such as the equality of men and women, universal peace, and the elimination of prejudice, which has often put its followers at odds with established religious authorities, leading to sectarian tensions and conflicts, particularly in Iran where they have faced significant persecution.