The ceremony of Sham-e Ghariban, the eleventh night of Muharram dedicated to the destitute of Karbala, was held Thursday night in the City Theater of Tehran. Ashura involves reenactments of the Battle of Karbala in which Imam Hussein (AS) was martyred in 680 AD, and public processions of intense collective grief accompanied by poetry recitals and services during which worshippers wear black.