1984: First version in books: ‘Conditions of Happiness‘, and related ‘Databook of Happiness‘
1990: Second version in books: ‘Bibliography of Happiness‘, ‘Happiness in Nations‘, ‘Correlates of Happiness‘
1994: Initial Web-site (FTP platform)
1998: First website with on-line facilities
2001: Collection ‘Measures of Happiness‘ added
2003: Finding Reports added
2003: Data file ‘States of Nations’ added
2005: Data file ‘Trends in Nations‘ added. World Map of Happiness added
2010: Collection ‘Happiness in Regions‘ added, as part of Happiness in Nations
2013: Integration of the three (Bibliography, Happiness in Nations, Correlational findings) MS Access data files into one
2017: Migration of the data in MS Access to MS Azure SQL Database; MS Access still operational for user management of the data
2020: Launch of a newly designed website. A lot of search tools added; the old (archive) website still partly in use for he time being
2022: All remaining components of the old website integrated into the new one. Old (archive) website closed.
202?: Version-1 as left by Ruut Veenhoven archived in the library of Erasmus University Rotterdam.
Copies are available for Continuation of this database.
Last update: 26-03-2023