Al-Husayn ibn Ali was the grandson of the Prophet Muhammad and the son of Ali ibn Abi Talib and Fatimah, the Prophet's daughter. He was born in 626 CE in Medina and is revered in both Sunni and Shia Islam for his piety and leadership. Al-Husayn is best known for his role in the Battle of Karbala in 680 CE, where he stood against the Umayyad caliphate's tyranny. The Battle of Karbala is a significant event in Islamic history, particularly for Shia Muslims, who view Al-Husayn as a martyr. His sacrifice is commemorated annually during the month of Muharram, especially on the day of Ashura. Al-Husayn's legacy symbolizes the struggle against oppression and injustice, making him a central figure in Islamic ethics and spirituality.