The death of this person is the subject of scenes called guriz in otherwise secular performances. A charity whose name asks “Who is [this person]” organizes blood drives to commemorate this person, who also names a kind of building also called a takyeh (“tahk-YAH”) or imambara. The day that marks this person's death also commemorates Noah’s Ark landing on dry land and the parting of the Red Sea. Tasu’a commemorates (*) Abbas’s refusal to betray this man, the principal subject of passion plays called ta’ziyeh (-5[2])(“tah-zee-YAH”). A kind of self-flagellation called tatbir is practiced to honor this man, whose shrine is the subject of the Arba’een pilgrimage. The tenth day of Muharram, Ashura, commemorates this man, who died in the Battle of Karbala. For 10 points, name this third Shia imam, the son of (-5[1])Ali. ■END■ (10[1]0[3])