Question: when did the shah of iran take power
Answer: Mohammad Reza Pahlavi , pronounced ( mohæmˈmæd reˈzɒː ˈʃɒːh pæhlæˈviː ) ; 26 October 1919 -- 27 July 1980 ) , also known as Mohammad Reza Shah ( محمدرضاشاه Mohamad Rezā Ŝāh ) , was the last Shah of Iran from 16 September 1941 until his overthrow by the Iranian Revolution on 11 February 1979 .