Answer:
The reason to keep first-hand accounts of history is to acknowledge the events later on in life.
Explanation:
Using primary sources, such as Anne Frank's diary, allows us to feel the pure emotion pouring from the experienced author of that time era. Thus, giving us an idea of what the person witnessed and accomplished. We keep these documents in order to evaluate the important factual evidence of the real-life experience of a person from so long ago. So, it gives us a sense of fascination and relief from what we didn't know before. (I hope this answers your question)
