Simplify the following text for a Grade 6 native English-speaking person.
Original: Ø Ø Ø Ø Ø Ø Ù Ù 3\/4 Ù Ù Ù Û ; ; 26 October 1919 â `` 27 July 1980 ) , ruled Iran from 16 September 1941 until his overthrow by the Iranian Revolution on 11 February 1979 .
Simplified: Ø Ø Ø Ø Ù 3\/4 Ù Ù Ù Û , October 16 , 1919 - July 27 , 1980 ) was the last Shah of Iran . He was the Shah of Iran from 1941 until the Iranian Revolution in 1979 .