Answer
In Kufa, Husayn ibn Ali led a revolt against Yazid I, the Umayyad caliph, in 680 CE. Ali's son and the Prophet Muhammad's grandson, Husayn, disputed Yazid's rule due to his impious lifestyle and disregard for Islamic principles. Husayn rejected Yazid's demand for allegiance, prompting him to travel to Kufa, where he received invitations from prominent citizens seeking his guidance.