Our Documents archive includes personal letters, newspaper articles, images, business documents and more. Documents are identified with a particular Topic, and are accessible through and used by our Case Studies. This page allows users to search the full archive. Our database includes all documents and objects in the Railroads and the Making of Modern America collection from various archives and partners, public as well as private. The collection is refreshed and reindexed regularly to include new materials, usually at the beginning of every academic semester (August, December, May).