Ashura is an important Islamic observance with different significance for Sunni and Shia Muslims. For Sunni Muslims, it marks the day Prophet Musa (Moses) and the Israelites were saved from Pharaoh’s tyranny. For Shia Muslims, it is a solemn day of mourning commemorating the martyrdom of Imam Hussain, the grandson of Prophet Muhammad, at the Battle of Karbala in 680 CE. It is observed with fasting, prayer, and, for Shia communities, processions and acts of remembrance.