English: Ashura (Arabic: عَاشُورَاء, ʿĀshūrāʾ, [ʕaːʃuːˈraːʔ]) is a day of commemoration in Islam. It occurs annually on the tenth of Muharram, the first month of the Islamic calendar. For Sunni Muslims, Ashura marks the parting of the Red Sea by Moses and the salvation of the Israelites. Also on this day, Noah disembarked from the Ark, God forgave Adam, and Joseph was released from prison, among various other auspicious events on Ashura in Sunni tradition. Ashura is celebrated in Sunni Islam through supererogatory fasting and other acceptable expressions of joy. In some Sunni communities, the annual Ashura festivities include carnivals, bonfires, and special dishes, even though some Sunni scholars have criticized such practices. By contrast, for Shia Muslims, Ashura is a day of mourning as they annually commemorate the death of Husayn ibn Ali, grandson of the Islamic prophet Muhammad and the third Shia imam. Husayn refused on moral grounds to pledge his allegiance to the Umayyad caliph Yazid ibn Mu'awiya (r. 680–683) and was subsequently killed, alongside most of his male relatives and his small retinue, by the Umayyad army in the Battle of Karbala on Ashura 61 AH (680 CE). Among the Shia minority, mourning for Husayn is viewed as an act of protest against oppression, a struggle for God, and a means of securing the intercession of Husayn in the afterlife. Ashura is observed through mourning gatherings, processions, and dramatic reenactments. In such ceremonies, Shia mourners strike their chests to share in the pain of Husayn. Extreme self-flagellation, often involving self-inflicted bloodshed, remains controversial among the Shia, condemned by many Shia clerics, and outlawed in some Shia communities. Ashura has sometimes been an occasion for sectarian violence, particularly against the Shia minority.