Fatimiyya is the days when Muslims of the world mourn owing to Fatimah al-Zahra's martyrdom. There is difference of view regarding the date of her demise. For instance, among Shia Muslims of Iraq, three days and within Iran two days are held as her martyrdom anniversary. Within the mentioned dates, 3rd of Jumada al-Thani is considered to be more trusted/probable; so, this date is regarded as an official holiday in Iran, and many of people mourn for Fatimah al-Zahra on this day.