May 27, 2019 is a bank holiday in Iran commemorating the martyrdom of Imam Ali (SA) which coincides with the 21 of the holy month of Ramadan. It commemorates the Martyrdom of Ali ibn Abu Talib, who was the son-in-law of the Prophet Muhammad and considered to be the first Imam by Shia Muslims.
Although on the official calendar May 26 had been named as a bank holiday, but officials have announced that Monday is the 21st day of Ramadan which is marked as the martyrdom of Imam Ali (SA).
Imam Ali, also known as Hazrat Ali, is an important figure for all Muslims worldwide.
He was the son of Abu Talib and Fatima bint Asda and was the first male to accept Islam, which some have argued makes him the first Muslim. Ali fought alongside Prothet Muhammad in the battles that forged the early Muslim community. After the migration to Medina, he married Muhammad’s daughter Fatimah and became Muhammad’s son-in-law.
After Caliph Uthman ibn Affan was assassinated, Ali was appointed Caliph in 656 CE. He ruled until 661 CE, when he was struck in the head with a poisonous sword by Ibn Muljam while praying in the Great Mosque of Kufa, in modern-day Iraq, on the 19th of Ramadan. He was martyred two days later on 21st of Ramadan.