Maqam Ra's al-Husayn (a) «A place of burial or preservation of the head of Imam al-Husayn (a). According to the well-known view of Shi'a scholars, the head of Imam al-Husayn (a) was reunited with his body in Karbala. However, there are also sites in Medina, Damascus, Raqqa, Cairo, and Asqalan that are known as Maqam Ra's al-Husayn (a).»
Imam al-Husayn b. Ali (a) «The third Shi'a Imam and the grandson of the Prophet Muhammad (s), who was martyred in the Battle of Karbala in 61/680 while standing against tyranny and injustice.»
Chest-beating «A mourning ritual practiced by Shi'a Muslims, especially during Muharram, in which participants beat their chests to express grief over the martyrdom of Imam al-Husayn (a) and his companions.»
Yahya (a) «A prophet mentioned in the Qur'an, known in the Bible as John the Baptist; revered in Islam for his piety, asceticism, and martyrdom. In Shi'a narrations, the martyrdom of Imam al-Husayn (a) is compared to the martyrdom of Yahya (a), and the childhood imamate of some Shi'a Imams is likened to his early prophethood.»
Martyrs of Karbala «The companions and family members of Imam al-Husayn (a) who were martyred in the Battle of Karbala. Their number has been reported as 72, 78, 87, or 145 in different sources.»
Al-Nafs al-Mutma'inna «A Qur'anic term meaning “the reassured soul,” mentioned in verse 89:27. It is a state of the human soul in which it reaches peace and certainty, no longer inclined toward sin.»
Historical Anniversaries of Muharram «Significant religious and historical events in Shi'a Islam that occurred during the month of Muharram, including the martyrdom of Imam al-Husayn (a) and the Battle of Karbala.»
