During the turbulent year of the Islamic Revolution , many families emigrated to the suburbs of Tehran .
During the turbulent year of the Islamic Revolution , many families joined those who had been settled there in the earlier mass immigration of 1964 - 1970 following the land reform .
During the turbulent year of the Islamic Revolution , many families emigrated to the suburbs of Tehran and joined those who had been settled there in the earlier mass immigration of 1964 - 1970 following the land reform .