Documents, images or artifacts that provide first-hand testimony or direct evidence concerning a historical topic.

Sources that analyze, assess or interpret a historical event. They generally use primary sources to do so.

A specific point-of-view or understanding of an event.

Using multiple pieces of evidence to confirm or support a statement.

Showing favor towards one side versus another, typically for or against an idea or thing

Not showing favor towards one side versus another.

Language that is considered fair, accurate, and unbiased.

Language that expresses opinion, feelings, or personal biases.

The quality of being trusted and believed in.

Information that is helpful in answering the historical question.

A person having a high level of skill or knowledge in a subject

The evaluation of work by one or more people within the same field