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DOTS and ITERATE - Terrorism incidents and terrorist biographies data: Home


The ITERATE and DOTS datasets are mainstay reference sources and research tools for terrorism research. ITERATE documents transnational terrorist incidents, DOTS describes individual terrorists.

Guidance on using ITERATE and DOTS is provided in this article:

The Penn Libraries acquire updates for ITERATE and DOTS on an irregular basis. The most recent acquisition was made in April 2016.

ITERATE, International terrorism: attributes of terrorist events, 1960-2020

The ITERATE project is an attempt to quantify data on the characteristics of transnational terrorist groups, their activities which have international impact, and the environment in which they operate. ITERATE data are available in two formats: as MS Excel tables and as text-file narratives.

ITERATE Text and ITERATE Numeric data files were acquired in April 2016.

DOTS, Data on Terrorist Suspects, 1960-2021

Also known as The Terrorist list: a directory of leaders, perpetrators, financiers, defendants, detainees, persons of interest, conspirators, aliases, and others and Who’s who in international terrorism. Published by Vinyard Software. Version received: 8/2021.

DOTS is a biographical directory of "individuals who have been named in open sources as somehow involved in terrorist attacks or organizations." DOTS covers 1950-present.

CAVEAT! Edward Mickolus, the compiler of DOTS, cautions, "Listing does not mean that the individual is a terrorist". See the introductory text in the document below..

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