 On the evening of 22 May 1844, Siyyid `Alí-Muhammad of Shiraz, Iran proclaimed that he was "the Báb" (الباب "the Gate"), referring to his later claim to the station of Mahdi, the Twelfth Imam of Shi`a Islam. His followers were therefore known as Bábís. As the Báb's teachings spread, which the Islamic clergy saw as a threat, his followers came under increased persecution and torture. The conflicts escalated in several places to military sieges by the Shah's army. The Báb himself was imprisoned and eventually executed in 1850.
