Thirty years after the founding of the Islamic republic, the ideals that inspired the uprising continue to inform every day life in modern Iran.
So how has the revolution managed to sustain itself through war, international isolation, economic sanctions, and regional turbulence?
And how has Iranian society changed since the seismic upheaval of 1979?
Rageh Omaar went to Iran to find out.
This film was first broadcast in August 2009.
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