International

ICPSR

ICPSR is an international consortium of more than 750 academic institutions and research organizations, which maintains a data archive of more than 250,000 files of research in the social and behavioral sciences.

IPUMS NAPP

The North Atlantic Population Project (NAPP) harmonizes and disseminates nineteenth and early twentieth century census microdata. The collection includes data from Canada, Denmark, Great Britain, Germany, Iceland, Norway, Sweden, and the United States for the period 1703 to 1911.