Book excerpt: This is a print on demand edition of a hard to find publication. Report of a project to code and verify a previously unavailable data set composed of 67,165 terrorist events recorded for the entire world from 1970 to 1997. This unique database was originally collected by the PGIS Corp. Global Intell. Service (PGIS). This database documents every known terrorist event across countries and time including different types of terrorist events by specific date and geographical region. It is the most comprehensive open source data set on terrorism that has ever been available to researchers. PGIS employees identified and coded terrorism incidents from a variety of sources, including wire services, U.S. State Dept. reports, other U.S. and foreign gov¿t. reports, U.S. and foreign newspapers, etc.