 In Chile, meanwhile, Gerold Stahl, Nathan Stemmer, and Augusto Pescador made logic a major field in Chile in the 1960s. Later in the decade, Roberto Torretti published a seminal book, Manuel Kant. Estudio sobre los Fundamentos de la Filosofía Crítica (1967; revised edition 2005). His subsequent work on Kant led him to wider research on the philosophical history of science, a field that had a growing audience, especially in Santiago. However, life in Chile became increasingly challenging as the decade progressed. In 1970 Torretti left to Puerto Rico, where he continued to develop his philosophical work, especially on nineteenth-century geometry and the theory of relativity. In 1973 a ruthless military dictatorship took over the government. It was a difficult time for academia; Chile’s leading journal, Revista de Filosofía, ceased publication and remained dormant until 1977. Although the institutional environment suffered greatly at most centers, quality research continued in logic, as evidenced by internationally acclaimed contributions during the period by Rolando Chuaqui and others.