The intention of this paper is to analyze the letters from Capistrano de Abreu to Barão do Rio Branco in the years between 1886 and 1903. The focus will be given to the divergences around the notion of territorial formation, a basic concept for these authors who were thinking about the construction of a historical narrative at the end of the 19th and beginning of the 20th century. Later, the question is the construction of the craft of the historian in the letters of Capistrano de Abreu and his distinction and proximity to the ideas of the Barão do Rio Branco.
correspondence; Capistrano de Abreu; Barão do Rio Branco; formation