A Department of Homeland Security Center of Excellence led by the University of Maryland

Global Terrorism Database: Collection and Coding

Global Terrorism Database: Collection and Coding

Project Details


At the time of 9/11 no one (at least in the unclassified world) could provide simple descriptive statistics on total terrorist attacks or total terrorism-related fatalities for the period leading up to the attack. The GTD is now the most comprehensive and longest running unclassified event data base on terrorism in existence. It is the only event data base that includes domestic attacks going back to 1970. From its inception the GTD has adopted a broad definition of terrorism: "the threatened or actual use of illegal force and violence by non-state actors to obtain a political, economic, religious, or social goal through fear, coercion, or intimidation."


Project Period: 
June 2008 to December 2011