An Essential Database for Advanced Historical Research

Historians and researchers need access to all available research in their field.

With 19th Century Masterfile, researchers have a single resource for exploring pre-1925 literature.

19th Century Masterfile begins with an enhanced, expanded digitization of William F. Poole's seminal Index to Periodical Literature, and expands on this through massive digitization of over 60 unique, specialized indexes to books, newspapers, patents, and government documents published during the late 19th and early 20th century.