The Hussaini Encyclopedia (Arabic - دائرة المعارف الحسينية - Dāʾirat al-maʿārif al-Ḥusaynīyah) is a one-of-a-kind encyclopedia in Arabic, completely themed on the third Imam, Husayn ibn Ali, his biography, thought and way of conduct, as well as on the social circle of personalities around him and also of places, chronicles and various other related subjects. This encyclopedia consisted of 700 volumes and well over 95 million words. , author of the voluminous Arabic encyclopedia dedicated to Imam al-Hussain started his work by establishing the Hussaini Center for Research in London in 1993. The Hussaini Encyclopedia is a historic study of al-Hussain which provides a heritage owing to its impact on all events, particularly the aftermath of battle of Karbala with its impact being observed in