Imam Hasan and Imam Hussein
Husayn ibn Ali (626-680) was the younger son of Ali ibn Abu Talib, the grandson of Muhammad (S.A.W.). After Hasan's death in 669, Ali's supporters proclaimed him their leader. After the death of Caliph Muawiyah in 680, the movement against the Umayyads intensified in Iraq. Hussein ibn Ali refused to swear allegiance to Yazid. The Shiites of Kufa recognized Husayn ibn Ali as their imam and invited him to Kufa to lead a rebellion against Caliph Yazid. Husayn ibn Ali left Mecca for Kufa. When he and his 70 warriors reached the plain of Karbala near Kufa, he was opposed by the 4,000 strong army of Caliph Yazid. Hussein ibn Ali was martyred on October 10, 680 and was buried there. In this regard, Karbala has become the main Shiite shrine. The date of the death of Hussein ibn Ali is celebrated by the Shiites as a day of mourning.