21 Ramadan

21 Ramadan is the twenty-first day of the ninth month (Ramadan) of the Islamic calendar.

In the Lunar Hijri calendar, this day is the 257th day of the year.

Deaths

 * 40 AH – Ali ibn Abi Talib, the first Imam of Shiites and the fourth Caliph of Sunnis
 * 726 AH - Osman I, the founder of the Ottoman dynasty
 * 1104 AH - Al-Hurr al-Amili, a Shia scholar and Faqih, author of Wasa'il al-Shia
 * 1028 AH - Seyyed Majed Hosseini Bahrani, a Shia scholar, Faqih and poet
 * Moses - Prophet of the Israelites (according to the narrations)
 * Joshua - Moses' assistant and his successor (according to the narrations)

Events

 * 40 AH - The beginning of the caliphate of Hasan ibn Ali, the older son of Ali and Fatimah, and a grandson of the Islamic prophet Muhammad, the second Shi'i Imam
 * 40 AH - The allegiance of the people of Kufa to Hasan ibn Ali for the caliphate
 * 40 AH - Retribution of Abd al-Rahman ibn Muljam, the killer of Ali (1st Imam of Shia)
 * The day of the revelation of the Quran, holy book of Islam (according to persian narrations)

Holidays and observances

 * The second Qadr Night of Ramadan according to Shiites, holding an official nightlife worship ceremony called Ehya night in Iran
 * Day of martyrdom of Imam Ali, an official holiday in Iran