Work on IPUMS-International began in October 1999. One of our first goals was to inventory and preserve surviving machine-readable census microdata and documentation. In 2000, the first edition of our census microdata inventory was published in Handbook of International Census Microdata for Population Research, edited by P. Kelly Hall, R. McCaa, and G. Thorvaldsen. A revised inventory can be accessed here. In 2001, the United Nations Statistics Division donated its archive of historical census documentation, including enumeration forms for most countries dating from the 1980s and earlier, to the Minnesota Population Center. A collection of scanned enumeration forms, consisting of the 1960-1990 census rounds, was published by the Minnesota Population Center and is available upon request.
We have also worked with the Centro Latinoamericano y Caribeno de Demografia (CELADE) to preserve a large collection of census metadata, documentation, and microdata covering almost all countries in Latin America and the Caribbean (over 3,000 census tapes). Much of the documentation has been scanned and provided to the Minnesota Population Center, as well as repatriated to the appropriate national statistical authorities.
The Minnesota Population Center has secured dissemination agreements from a large number of countries. A preliminary version of data and documentation from Colombia, France, Kenya, Mexico, the United States, and Vietnam were first made available in spring 2002. Additional variables and a new sample for 1982 China were added in March 2003, and samples for Brazil were added in 2004. After a major redesign of the project in 2005, 210 further samples were released from 2006 to 2013. The latest release, in June 2014, included 20 samples from Dominican Republic, Ghana, Ireland, Liberia, Mali, Nigeria, Ukraine, Uruguay, and Zambia.
To date, we have reached agreements with most census agencies in Central and South America. Data from these countries form the basis of a IPUMS-Latin America project, funded by the National Institutes of Health, which began in mid-2003 and was granted a 5-year extension in 2008. NIH has also funded a separate IPUMS-Eurasia project, which began in fall 2004 and was extended in 2009. In 2005, 2009, and 2014 the National Science Foundation funded continuations of the original IPUMS-International project, allowing for the continued development of the project in all regions of the world through 2019. At the request of the National Science Foundation, we have written a series of reports on our progress and future plans: 2006, 2007, 2007b, 2008, 2009, 2011, 2012. The reports encompass all major aspects of the work under the NIH and NSF grants.
We have ongoing negotiations with numerous countries that have expressed interest in participating in the IPUMS-International initiative, and we continue to locate and preserve at-risk datasets from around the world.