In literary and historical analysis, presentism is a term for the introduction of present-day ideas and perspectives into depictions or interpretations of the past. Some modern historians seek to avoid presentism in their work because they consider it a form of cultural bias, and believe it creates a distorted understanding of their subject matter. The practice of presentism is regarded by some as a common fallacy when writing about the past. [Wikipedia](

see also: Historian’s Fallacy, a similar but different concept