Primary and Secondary Sources
Primary means written at or near the time of the historical event.
Secondary means written many years later, probably by a scholar researching the historical event.
When using Academic Search Premier and Historical Abstracts, be sure to use "And" between the terms. (E.g. Black death AND Italy)
When using JSTOR an AND is automatically inserted between every word. To keep words together as a phrase, use quotation marks. (E.g. "Black death" Italy)
An asterick at the end of a word can find alternate endings. (E.g. Jew* will find Jew, Jews, Jewish, etc)