ABSTRACT Epistemic social oppressions such as ‘epistemic partiality’, ‘epistemic injustice’, ‘epistemic harms and wrongs’, ‘epistemic oppression’, ‘epistemic exploitation’, ‘epistemic violence’, or ‘epistemicide’ are terms with increasing theoretical importance and empirical applications. However, less literature is devoted to social strategies to overcome such oppressions. Here the Sorelian and Gramscian concept of social myth is considered in that sense. The empirical case is the myth of ‘The last Indigenous peoples of Europe’ present in the Basque Country, divided between France and Spain and (...) with a historical national culture under their statist powers. The myth has a renewal in a recent social movement, the Biltzarre platform and its Basque Cultural Instinct Team, currently followed through a Participatory Action Research. The results show how such social myth gives coherence and empowers the Basque identity against the loss of identity caused by the French and Spanish powers. Finally, progress is being made on how epistemic oppressons can end, ironically, because of the success of an epistemicide. Presumably, social myths counteract epistemic oppression, strengthening the social identity and self-esteem of the subject, as a form of empowerment in social and political issues. (shrink)