Primary sources = original sources of information about a topic, created by the person in question or at the time being studied
Secondary sources = analyze and interpret primary sources (while engaging with other relevant secondary sources)
Tertiary sources = incorporates many different secondary sources into a summary of a specific subject
- Indexes, dictionaries etc. (reference materials) that help guide us to primary and secondary sources
*An item may be both a primary and secondary source!*

A multi-disciplinary discovery tool that searches over 130 research databases, the SLU Library Catalog, SLU Digital Collections, and journal content from multiple publishers. Find articles, books, videos, and more.
Search across all of SLU's subscribed ProQuest Historical Newspapers: Chicago Defender, Chicago Tribune, Kansas City Call, Los Angeles Times, The New York Times, St. Louis American, and St. Louis Post-Dispatch.
Provides access to millions of primary source, full-text/full-image documents on the most widely studied topics in 19th and 20th-century American history.
