This site presents selections from the New-York Historical Society Library’s holdings, grouped into six online collections, including photographs of New York City, American manuscripts, maps and broadsides from the Revolutionary War era, manuscripts relating to slavery and African American history, Civil War materials, and the New-York Historical Society Quarterly journal. The site is expanding as the library continues to digitize its primary source materials relating to the history of New York and the United States. We encourage users to explore the site to learn more about the library’s collections and to conduct research within the growing number of collections that have been digitized comprehensively and that are available through this portal. We also encourage researchers to visit the library in person to use our rich collections of materials that have not yet been digitized. You can find out more about the library and its holdings through its website as well as through its online catalog and finding aids for manuscript and graphic collections. The N-YHS digital collections are presented on this site through an open-source software platform, Islandora.