Protestantism acted as a religious and cultural force in the religious field in the first decades of the Brazilian Republic. The notions of “fieldâ€, “representationâ€ and “beliefâ€ guided research for this paper. The paper analyses the regional origins, conflicts, numbers and representations of Protestantism in Maranhão. The Romanization of the Catholic Church in Maranhão defined strategies, conflicts, and control over popular devotions, and it shaped certain difficulties faced by these Protestants. The changes and transformations that occurred during the First Republic redefined new centers of sacredness in the Brazilian religious field. Maneuvering for positions in this field, Protestants constructed new meanings and identities by means of their institutions and publications. This Evangelical pluralism formed part of Brazil’s emerging cultural and religious pluralism, and it articulated, along with other movements, the discourses of civilization and modernity. The paper analyses the intersection between Evangelical belief and Protestant historiography, drawing on the iconography of the well-known painting “The Narrow and the Broad Wayâ€, on Miguel Vieira Ferreira’s biography, and on the disinterested views of journalist João do Rio. The other faces of a specifically Protestant sacredness in Brazilian culture were varied, ranging across paradigms of belief, representations, subjects and culture.