Imam Hussain (PBUH) is highly regarded by Muslims and many non-Muslims because he refused to pledge allegiance to Yazid the Umayyad caliph, because he considered the rule of the Umayyads unjust. As a consequence, he left Medina, his home town, and traveled to Mecca. There, the people of Kufa sent letters to him, asking his help. So he traveled toward Kufa. At Karbala his caravan was intercepted by Yazid’s army. He was killed and beheaded in the Battle of Karbala in 680 (61 AH) by Shimr Ibn Thil-Jawshan, along with most of his family and companions. The annual memorial for him, his family, his children and his companions is called Ashura (tenth day of the month Muharram) and is a day of mourning for Muslims and many non-Muslims.
Text from : www.islampfr.com
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