History Commons provides full text searchable databases of primary source material from 18th and 19th Century publications
Records included:
The Civil War database, with the full text of major articles from The New York Herald, The Charleston Mercury and The Richmond Enquirer covering November 1, 1860 - April 15, 1865.
The African American Newspapers database contains seven of the major African American newspapers of the 19th century and other major historical newspapers from the 18th and 19th century.