Primary source documents are documents created by witnesses of events being documented. They offer an inside viewpoint. They can include:
Some examples include:
Source: Princeton University
Secondary sources interpret and analyze primary sources. They are written after an event has occurred, and provide analysis and secondhand accounts of events/topics because they are one or more steps removed from the event. The perspective, interpretation, and conclusion of a secondary source may be different from that of the primary source.
Secondary sources include: