Shops in a special section of Tehran’s Grand Bazaar sell flags, banners, and other equipment needed to hold ceremonies to commemorate the martyrdom of Imam Hussain (AS) and his companions in a 10-day period leading to Ashura, the 10th day of Islamic month of Muharram which falls on July 28 this year. (IRNA photos/Asghar Khamseh)

Imam Hussein (AS) – the grandson of Prophet Muhammad (PBUH) – and his 72 companions were brutally martyred in an unequal battle by Yazid ibn Mu'awiya ibn Abi Sufyan, the second caliph of the Umayyad Caliphate, in the Battle of Karbala that took place in October 680 (10th of Muharram 61 AH).

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