 The anti-positivist rebellion constitutes the first phase of contemporary Latin American thought. It was brought about by a generation of philosophers born around 1910, all of whom were trained as positivists, before breaking with it. The principal members of this generation—called “the generation of founders” by Francisco Romero, and dubbed “the generation of patriarchs” by Francisco Miró Quesada—are well known: Alejandro Korn (1860–1936) in Argentina, Alejandro Octavio Deústua (1849–1945) in Peru, José Vasconcelos (1882–1959) and Antonio Caso (1883–1946) in Mexico, Enrique José Molina (1871–1956) in Chile, Carlos Vaz Ferreira (1872–1958) in Uruguay, and Raimundo de Farias Brito (1862–1917) in Brazil.