Answer
Husayn ibn Ali, the grandson of the Prophet Muhammad, was invited to lead a revolt against the Umayyad caliph Yazid I in Kufa. The people of Kufa, disillusioned with Yazid's rule, sought Husayn's leadership to challenge the oppressive and unjust practices of the Umayyad regime. However, the uprising faced significant challenges, as many of Husayn's supporters eventually abandoned him, leading to the tragic events of the Battle of Karbala.