START has released an update to its Global Terrorism Database (GTD), the largest, most comprehensive open-source database including information on terrorist attacks that took place around the world between 1970 and 2014. The GTD, which is updated annually, now includes data on events that occurred through December 2014. In addition, the GTD team continually works to improve the data on earlier attacks. This new release includes new details about attacks that happened prior to 2014, as well as geo-coded historical data for 50 additional countries, including Colombia, Israel, and Nigeria, and Peru. Additional details about what is new in the latest GTD update can be found in the GTD Codebook.
Unlike many other event databases, the GTD includes systematic data on domestic as well as international terrorist incidents that have occurred during this time period and now includes more than 140,000 cases.
The data are available for download at http://www.start.umd.edu/gtd/contact/.