___________________________________________________________ _____At the end of the 60s, the first news about Noam Chomsky's Generative Grammar spread among Brazilian Scholars. The first consequences of these North-American linguistic ideas was the creation of a study group that joined researchers who started applying Generative Grammar theories and its methods to Portuguese language data. This thesis aims at reconstructing this period of Brazilian Linguistics. In order to do so, it proposes the use of Linguistics Historiography, applying analytic categories such as investigation programs, research groups, internal and external reconstructions, argumentation patterns, revolutionary rhetoric, continuity and discontinuity.