Formerly 19th Century Masterfile. Covers scholarly sources from the 12th century to early 20th century. Includes Earl Gregg Swem's Virginia Historical Index; Poole's Index to Periodical Literature; Niles' Register; American Memory; links to images in ArtSTOR; plus many more. Citations to magazine articles, books, newspapers, patents, and US/UK government documents, and images. Coverage: 1106-1930 (varies by source).