Survey of historical databases with longitudinal micro-data

In 2009, the HSN (now HSNDB) sent out surveys to multiple data centers to document their databases on historical persons. The surveys were part of the 'Towards a Global Life...2009年，HSN（现已更名为HSNDB）向多家数据中心发放调查问卷，以记录各数据中心所收录的历史人物数据库相关信息。本次调查为‘迈向全球生命（Towards a Global Life...）’项目的组成部分。