Dimensionality of Nations Project: Nation Attribute Data, 1950-1965 (ICPSR 5020)

Published: Feb 16, 1992

Principal Investigator(s):
Rudolph J. Rummel


Version V1

This study contains data on the political, economic, religious, ecological, and demographic characteristics of 113 nations in the years 1950, 1955, 1960, 1963, and 1965. Originally collected by the Dimensionality of Nations (DON) Project at the University of Hawaii, these data provide information on political regime characteristics, such as the number of political parties, electoral system, political leadership, the nature of the political system, horizontal power distribution, communist party membership, the legitimacy of present government, the legality of government change, freedom of opposition, major government crises, bureaucracy, and the occurrence of assassinations, riots, general strikes, protests, domestic violence, demonstrations, threats and accusations, and purges. Economic variables focus on gross national product (GNP), aid received from the United States and Russia, national income, government expenditures, government balance of payment, investments, imports and exports, energy production and consumption, agricultural production, and the economically active population. Demographic variables include age, education, literacy, religion, ethnicity, marital status, immigrants, and migrants. Other variables provide information on the nations' bloc memberships, United Nations' assessment of the nations, air distance of the nations from the United States, number of nongovernmental organizations, number of the nations' diplomats expelled or recalled, age of the nations, and the nations' geography.

Rummel, Rudolph J. Dimensionality of Nations Project:  Nation Attribute Data, 1950-1965. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1992-02-16. https://doi.org/10.3886/ICPSR05020.v1

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Benin Cambodia Sudan East Timor Paraguay Portugal Syria North Korea Greece Iran Morocco Mali Panama Guatemala Iraq Chile Laos Nepal Argentina Tanzania Zambia Ghana India Canada Turkey Belgium Taiwan Finland Trinidad and Tobago Central African Republic Jamaica Peru Turkmenistan Germany Yemen Vietnam (Socialist Republic) Easter Island United States Guinea China (Peoples Republic) Somalia Chad Madagascar Ivory Coast Thailand Libya Costa Rica Sweden Poland Jordan Nigeria Bulgaria Tunisia Sri Lanka Uruguay United Kingdom Switzerland Spain Lebanon Brunei Cuba Venezuela Liberia Czech Republic Mauritania Israel Australia Soviet Union Tajikistan Myanmar Cameroon Malaysia Global Gabon South Korea Austria Yugoslavia El Salvador Brazil Algeria Colombia Ecuador Hungary Japan Albania New Zealand Senegal Italy Honduras Ethiopia Haiti Afghanistan Burundi Egypt Sierra Leone Bolivia Russia Saudi Arabia Netherlands Pakistan Ireland Slovakia France Romania Togo Niger Philippines Rwanda Uzbekistan Nicaragua Norway Democratic Republic of Congo Denmark Dominican Republic British Virgin Islands Uganda Mexico Zimbabwe Indonesia

1950 -- 1965

The data map is provided as an ASCII text file, and the codebook is provided by ICPSR as a Portable Document Format (PDF) file.


A total of 113 nations with populations greater than 750,000 that were independent at least two years by 1965.

(1) Russett, Bruce M., David J. Singer, and Melvin Small. "National Political Units in the Twentieth Century: A Standardized List." THE AMERICAN POLITICAL SCIENCE REVIEW 62, 3 (1968), 935-950, and (2) University of Hawaii. Department of Political Science. "The Dimensionality of Nations Project." RESEARCH REPORT 65.

aggregate data




  • Data in this collection are available only to users at ICPSR member institutions.

  • The citation of this study may have changed due to the new version control system that has been implemented.
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