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E-book Sowing : The Construction of Historical Longitudinal Population Databases
Over the last 60 years several major historical databases with reconstructed life courses of large populations have been launched. The development of these databases is indicative of considerable investments that have greatly expanded the possibilities for new research within the fields of history, demography, sociology, as well as other disciplines. At the annual meeting of the Social Science History Association in Montréal in 2017, the session "Development of Major Databases and their Results from the beginning till now" brought together presentations from some of the largest and most well-established databases with life course data, databases that have also been at the forefront of the development in this field. We were well aware in 2017 of numerous additional databases that had been established around the world in recent decades. In his valedictory speech Kees Mandemakers (2023) made an inventory of a total of 54 databases and even this compilation is not exhaustive.In order to collect, organize, and then publish information on these major databases in a single collection, invitations were first sent to the leaders of about 25 of these databases. We received in most cases positive and enthusiastic reactions and, when the leaders of a database declined cooperation, it was mostly due to time constraints. We had no specific selection criteria, except that databases had to be actively used and maintained and the primary purpose of the database had to be the (re)construction of individual-level historical life courses. Archived databases, like the Louis Henry dataset (Séguy, 2001), were therefore excluded. Following the first round of invitations, others joined the collective endeavour, expanding the geographic coverage of our collection. We are now very pleased to present contributions representing 24 databases in two special issues of Historical Life Course Studies. The number and diversity of databases represented here is truly impressive! Our overall strategy of describing these major databases resulted in creating two separate special issues. One, Major Databases with Historical Longitudinal Population Data: Development, Impact and Results, edited by Sören Edvinsson, Kees Mandemakers and Ken Smith (2023), deals with how the databases contributed to discoveries, responded to changing research questions and facilitated the development of novel lines of inquiry in historical demography and related fields. The present issue focuses on the technical and organizational aspects of these databases, such as their origins and evolution, content and database designs, as well as any setbacks and dependence on external funding. Some recently developed databases appear in this issue with information about both their impact and technical aspects, and several of the impact articles included technical information that is not repeated in this issue. The Chinese database consists of five datasets, three of which are described in the impact issue and two in the technical issue.
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