Muharram is the first month of the Islamic calendar, and it holds great significance for Muslims around the world. The tenth day of Muharram is known as Ashura, which is a day of mourning and remembrance for the martyrdom of Imam Hussain, the grandson of the Prophet Muhammad. The story of Imam Hussain's martyrdom dates back to the year 680 AD, when he was killed in a battle against the forces of Yazid, the Umayyad caliph. Imam Hussain and his followers were brutally killed in the Battle of Karbala, where they fought for justice and righteousness. The event is considered a symbol of sacrifice and resistance against tyranny.