what was ayatollah khomeini known for
Khomeini was a marja (source of emulation, also known as a Grand Ayatollah) in Twelver Shi'a Islam, but is most famous for his political role. In his writings and preachings he expanded the Shi'a Usuli theory of velayat-e faqih, the guardianship of the jurisconsult (clerical authority) to include theocratic political rule by the Islamic jurists.