Hundreds of domestic and foreign reporters are set to cover the Tuesday rallies, reports say.

The day, the 22nd of the month of Bahman on the solar calendar, coincides with a definitive end to the rule of the monarchical Pahlavi regime and thus an end to the 2,500 years of monarchical rule in the country. The Islamic Revolution, under the leadership of Imam Khomeini, established a new political system based on Islamic values and democracy.

Fireworks and colorful illuminations brightened the nights of many Iranian cities on the eve of the demonstrations.

Iranian President Hassan Rouhani is scheduled to deliver a speech at a celebratory event in Tehran.

Political and religious figures, as well as organizations and political groups, have called for a massive turnout in the rallies.

BA/BA