Special ceremonies are being held across Iran to mark the 34th anniversary of the victory of the 1979 Islamic Revolution that toppled the US-backed Pahlavi regime.
The ceremonies kicked off all over the country on Thursday morning at 9:33 a.m. local time (0603 GMT), the time when the late founder of the Islamic Republic, Imam Khomeini, returned to the Iranian capital, Tehran, on February 1, 1979 after a 15-year exile in Paris.
High-ranking Iranian officials and people from all walks of life came together at the mausoleum of the founder of the Islamic Republic in southern Tehran to renew their allegiance to the ideals of late Imam Khomeini.
The day of Imam Khomeini's return to Iran marks the beginning of the Ten Days of Dawn, which culminates with the anniversary of the victory of the Islamic Revolution on February 10.
Iranians have arranged different programs to celebrate the event by honoring Imam Khomeini's historic return and the memory of the revolutions martyrs.
On Wednesday, Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei and President Mahmoud Ahmadinejad visited the mausoleum of the late Imam Khomeini to pay tribute to the founder of the Islamic Revolution.
The Iranian nation toppled the US-backed Pahlavi regime 34 years ago, ending 2,500 years of monarchic rule in the country.
The Islamic Revolution, under the guidance of Imam Khomeini, established a new political system based on Islamic values and democracy.