Via Center for Research Libraries (CRL) – “The ICON database is the most comprehensive source of information about significant newspaper collections in print, digital and micro formats. The large and growing database is designed to inform library decisions on the development, management and preservation of newspaper collections. Current statistics: 47,222,880 issues from 171,518 publications dating from 1649–2015.  See more ICON statistics and visualizations. Funding and support for the ICON database has come from the Center for Research Libraries, the National Endowment for the Humanities (NEH), the Institute of Museum and Library Services (IMLS), and the Andrew W. Mellon Foundation.”