Primary sources are records of a person, event, or occurrence that was created by an eye-witness or participant's version of an event. Primary sources allow researchers to gain better insight into historical figures and events.
Examples of Primary Sources
Letters, diaries, class notes, emails, texts, tweets, Facebook entries, and photographs.
Secondary sources are created by individuals who were not direct participants in an event. For example, books on Purdue University history are secondary sources because the author analyzes, interprets, retells, or explains events for which he did not personally witness or participate. Secondary sources help you understand a topic and give you different views of historical people, events, and occurrences.
Examples of Secondary Sources
Newspaper articles, biographes, history books, magazine articles, and documentaries.