distortion of history; historical revisionism (negative)
Refers to the deliberate misrepresentation or denial of historical facts, often with political intent. Carries a strong negative connotation.
That textbook was criticized as a distortion of history.
Distorting history is an unforgivable act.
歴史修正主義 is a broader term for historical revisionism, which can be neutral or positive, whereas 歴史歪曲 specifically implies malicious distortion or denial.
Compound of 歴史 (history) and 歪曲 (distortion, falsification).