The Assassins

The Assassins (aka Nizari Ismailis), were a heretical group of Shiite Muslims who were powerful in Persia and Syria from the 11th century CE until their defeat at the hands of the Mongols in the mid-13th century CE. Secure in their fortified hilltop castles, they became infamous for their strategy of singling out opposition figures and murdering them, usually in knife-wielding teams. The group was known as the Assassins by their enemies in reference to their use of hashish, 'assassin' being a corruption of the Arabic hasisi ('hashish-eater'), and so the name has since come to be associated with their chief modus operandi, the act of murder for political or religious purposes. The Nizari Ismailis continue to exist as a branch of Islam today.