Historical fiction is a literary genre in which the plot takes place in a setting located in the past. Although the term is commonly used as a synonym for the historical romance, it can also be applied to other types of narrative...and graphic novels.
An essential element of historical fiction is that it is set in the past and pays attention to the manners, social conditions and other details of the depicted period. Authors also frequently choose to explore notable historical figures in these settings, allowing readers to better understand how these individuals might have responded to their environments. Some subgenres such as alternate history and historical fantasy insert speculative or ahistorical elements into a novel.
Source: https://celadonbooks.com/what-is-historical-fiction/
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