 In 1975, invited by Porchat, Olaso went to Brazil where he became a professor at the State University of Campinas (UNICAMP) until 1977. This fact had a profound influence on the development of the studies of skepticism in both countries and even in other Latin American countries. Their mutual collaboration proved very fruitful. Philosophers interested on skepticism soon got in touch, for they organized seminal conferences on the topic (1986, in Campinas, Brazil; in 1992, in Buenos Aires, Argentina; unfortunately, no proceedings were published). Throughout the years, many other conferences on skepticism were held (in Brazil, Argentina, and Mexico) in which philosophers from many countries took part and collective books on skepticism appeared.