Husayn ibn Ali, the third Shia Imam (died 680)

Husayn ibn Ali was a social, political and religious leader in early medieval Arabia. The grandson of the Islamic prophet Muhammad and an Alid, as well as a younger brother of Hasan ibn Ali, Husayn is regarded as the third Imam in Shia Islam after his brother, Hasan, and before his son, Ali al-Sajjad. Husayn is a prominent member of the Ahl al-Bayt and is also considered to be a member of the Ahl al-Kisa and a participant in the event of the mubahala. Muhammad described him and his brother, Hasan, as the leaders of the youth of paradise.

January 10 is the 10th day of the year in the Gregorian calendar; 355 days remain until the end of the year.