vicksburg (a keyword search can consist of a single word)
civil war (a keyword search can consist of a phrase)
vicksburg and civil war (combine keywords with AND to retrieve items with all keywords)
civil war and regiment* (use * to retrieve keywords with alternate endings; in this case, regiment, regiments and regimental)
slavery or slave trade (combine keywords with OR to retrieve items with at least one of the keywords)
(sources or personal narratives or diaries) and civil war (Which keyword or phrase MUST appear in the results for this search?)
Below are some general databases that provide magazine, journal, and newspaper articles on all subject areas.