The rallies started at 9:30 AM simultaneously in 1,400 cities and 38,000 villages across the country.
In Tehran, people have marched from different parts of the city to the Azadi (liberty) Square, in which the main ceremony will be held in a few hours.
The ceremony at the Azadi Square is scheduled to be addressed by Iranian President Ebrahim Raeisi.
Some 6,500 Iranian as well as 200 foreign journalists, photojournalists and camera crew are covering the massive rallies in Tehran and other cities.
Today marks the last day in the Ten Day Fajr (dawn) celebrations.
The day of Imam Khomeini’s return to Iran (February 1 this year) marked the beginning of the celebrations, which mark the anniversary of the victory of the revolution that put an end to the monarchy of the US-backed Pahlavi regime in the country.
The Iranian nation toppled the US-backed Pahlavi regime 44 years ago, ending the 2,500 years of monarchic rule in the country.
The Islamic Revolution spearheaded by the late Imam Khomeini established a new political system based on Islamic values and democracy.
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