• Alternate history, a subgenre of speculative fiction dealing with divergences from the world's actual history
• Counterfactual history, a form of historiography which speculates on "what if" counterfactuals to actual history
• Historical revisionism
  Historical revisionism
  In historiography, historical revisionism is the reinterpretation of orthodox views on evidence, motivations, and decision-making processes surrounding a historical event...
  
  , the reinterpretation of orthodox views on history or historiography
• Secret history
  Secret history
  A secret history is a revisionist interpretation of either fictional or real history which is claimed to have been deliberately suppressed, forgotten, or ignored by established scholars.-Secret histories of the real world:...
  
  , historical events claimed by revisionists to have been deliberately suppressed or forgotten

See also

• New Chronology (disambiguation)
• Alternative (disambiguation)