Because primary sources are the documents or artifacts closest to the topic of investigation, they are a great way to gain insight into and an understanding of an event or topic. Often they are created during the time period that is being studied but they can also be produced later by eyewitnesses or participants.
You may find primary sources in their original format (usually in an archive) or reproduced in a variety of ways: books, microfilm, digital, etc.
Add these words to the end of your search for resources on any topic to focus your search specifically on primary sources:
For example: american revolution sources