Which item is an example of a primary source?

A primary source is a piece of information that provides first-hand accounts of the events, practices, or conditions you are researching. Overall, this kind of sources includes documents that were shaped by the witnesses or first recorders of these events nearby the time they happened. It also includes first-hand accounts that were documented later, such as autobiographies, memoirs, and oral histories. However, the most advantageous primary sources are usually measured to be those that were bent closest to the period you’re investigating. A photograph of a civil rights march would be a great example of it.

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