Answer:
Hello. You did not include the sources of the newspaper so that your question can be answered, but I can help you.
The primary sources refer to a specific period of time, so if you analyze them you will be able to know exactly when the primary source was created.
Explanation:
A primary source is a document (diary, recording, photography, painting, etc.) that was created at the moment when the situation he is referring to happened. An example of this can be displayed when we see photos, videos and reports created when the twin towers received terrorist attacks from planes.
As you can see, the primary sources refer to a specific moment, the period in which this source was created is easily found.
