Final answer:
Historians need to consider bias, historical context, and the author's frame of reference when analyzing an author's feelings or actions in favor of one thing over another.
Explanation:
Bias is a crucial factor for historians to consider when analyzing an author's feelings or actions in favor of one thing over another. Authors may have personal prejudices that influence their writing, leading to a skewed perspective. Understanding the historical context in which the author was writing is essential to grasp the motivations behind their bias. Additionally, recognizing the author's frame of reference helps in comprehending why they favored one viewpoint.
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