161. State Fragility Index and Matrix, Time-Series Data, 1995-2018 Bookmark Format Series - completed
169. Third International Mathematics and Science Study: International Curriculum Analysis, 1992-1995 (TIMSS) Bookmark Format Series - ongoing
170. Transition to agriculture and first state presence: A global analysis Bookmark Format Single study
171. Transnational Social Movement Organization Dataset, 1953-2003 Bookmark Format Series - completed
175. Union Centralization among Advanced Industrial Societies: An Empirical Study Bookmark Format Data archive or collection
176. Union Centralization Among Advanced Industrial Societies: An Empirical Study of Organisation for Economic Co-operation and Development (OECD) Countries, 1950-2000 Bookmark Format Series - completed
177. United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems (1970+) Bookmark Format Series - ongoing