Imam’s arrival intensified popular protest rallies against the Pahlavi regime, leading to its downfall ten days later and put an end to the monarchy of the foreign-backed regime in the country.
Imam Khomeini spent more than 14 years in exile, mostly in the Iraqi holy city of Najaf. The great leader of the Muslim world also spent some time in Turkey and France, before his return to Iran.
The day when Imam Khomeini returned to Tehran marks the start of 10 days of celebrations better known as the 10-Day Dawn festivities.
Millions of people are set to mark ten days of celebrations marking the 38th anniversary of the victory of the 1979 Islamic Revolution.
The victory of Islamic Revolution under the wise leadership of Imam Khomeini revived the divine values and changed the balance of power at the sensitive juncture of history.