The purpose of this work is to seek to understand how the conservative wave that is plaguing the country, more specifically the area of Education and History Teaching, has ended up influencing the teachers daily lives in the classroom, and how they started to be considered great enemies by part of Negationists. In this sense, the origins and grounds for conservative attacks will be demonstrated and their mentors made explicit, such as Olavo de Carvalho, Leandro Narloch and their practices. We will see the impacts on the daily teaching of History mainly through the work of the School Without Party Movement (Movimento Escola Sem Partido - MESP) and we will see, for example, that the ideological indoctrination of which teachers are accused, in fact, has a direction and a cause specifically targeting History and Human Sciences teachers. This work will also analyse how MESP approaches groups and political parties with conservative themes and how the appropriation of its guidelines can leverage itself in the national scenario. In addition, this work will also focus on the response of History teachers and the new ways of discussing this Science, mainly through Digital History. We will see how this movement to occupy digital media and the dispute over this space with Negationists are both done by specialists in the area, concluding that a demonstration of what has happened in academic spaces is not a kerfuffle, but rather, Science of high quality and complexity. This answer will be sought through a small mapping of channels of the most varied types, which value the scientific dissemination of accessible language to supporters of the area and are a way to combat the negationist obscurantism that surrounds us.