Battle of Karbala
Ashura marks the climax of the Remembrance of Muharram, the annual commemoration of the death of Husayn and his family and supporters at the Battle of Karbala on 10Muharram in the year 61AH (in AHt: 10 October 680AD). Mourning for the incident began almost immediately after the battle. Popular elegies were written by poets to commemorate the Battle of Karbala during the Umayyad and Abbasid era, and the earliest public mourning rituals occurred in 963AD during the Buyid dynasty.