Final answer:
Realism and Naturalism Periods focused on the commonplace, rejected idealism and fantasy, and emphasized accuracy in depicting reality.
Explanation:
Realism and Naturalism Periods (1865 - 1914) were characterized by a focus on commonplace elements, rejecting idealism and fantasy. Realists wrote about ordinary people facing real-life struggles, emphasizing details and accuracy in their work to depict reality. Authors like Mark Twain and William Dean Howells were key figures in this movement.
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