As you conduct your own research, it is important to remain aware of the underlying influences not explicitly represented in the documents. In particular, you might question:

• the original purpose of the documents;
• the context of the time period;
• the authority and biases of the creator;
• whether the account is retrospective or spontaneous;
• whether the account is first- or second-hand;
• whether the documents describe a commonplace or unique idea or event.

Your ability to analyze these underlying influences and to put information in its proper perspective will help you determine how much weight you give to the documents in your research. You may find that you cannot depend on only one document or collection to support your conclusions. In many cases, you may have to verify information with other sources. It is a good idea to consult as many sources as possible in order to confirm that the information you collect is reliable.