Iranian Islamic Republic Day

File:صفحهٔ نخست روزنامهٔ اطلاعات ۱۲ فروردین ۱۳۵۸.jpg

First page of Ettela'at news paper on 1 April 1979

Iranian Islamic Republic Day (Persian: روز جمهوری اسلامی‎‎) is Farvardin 12 that known as Ruz e Jomhuri ye Eslāmi. This day is a national and an public holiday in Iran. On Iranian Solar Hijri calendar, this day is registered as the anniversary of the 1979 establishment of the Islamic Republic and celebrated by people. Two months after victory of the Islamic Revolution on 1979, the new government held Iranian Islamic Republic referendum on the 10th and 11th of Farvadin (30th and 31st of March) for changing the Pahlavi dynasty with an Islamic Republic. On 12 Farvadin, the referendum results was announced that 98.2 percent of the Iranian people voted to Islamic Republic.

Before Islamic Republic referendum, some political groups suggested various name for ideology of Iranian revolution such as the Republic (without Islam) or democratic republic. But Ruhollah Khomeini, the founder of the Islamic Republic of Iran, asked people to vote to the Islamic Republic, not a word more and not one less word.

12 Farvardin is a book about events of Islamic Republic Day by Saeed Zahedi. Also other books were published about this day.

The day usually falls on April 1, however, as it is determined by the vernal equinox, the date can change if the equinox does not fall on March 21. In 2016, it was on March 31.