Counterhistory is a term that refers to a collection of works that aim to revise, challenge, or even refute the dominant historical narrative. This field of study includes various genres such as alternative history, speculative fiction, and revisionist historiography. Alternative history offers a different version of events that diverge from the established history, while speculative fiction uses fictional elements to imagine alternative realities. The revisionist historiography challenges conventional historical accounts and explores the broader, often ignored perspectives. Other synonyms for counterhistory include subaltern history, heretical history, non-traditional history, and outsider history. Together, these fields form a complex and rich tapestry of interpretation, critique, and imagination concerning the nature and limits of historical knowledge.