The RAND Database of Worldwide Terrorism Incidents is a compilation of data from 1968 through 2009. This legacy RAND project developed and maintained a database of terrorism incidents stretching back to 1968, which provides comprehensive information on international and domestic terrorism. Over the years, many public and private sponsors have contributed to the maintenance of the RDWTI and its predecessors, the RAND Terrorism Chronology and the RAND-MIPT Terrorism Incident Database.