When mention is made of Brazil in connection with American linguistics, it usually amounts to a reference to the Linguistic Circle of New York, where Roman Jakobson (1896–1982) and Claude Lévi-Strauss (b.1908), who had come from Brazil where he had done ethnological work, met and exchanged ideas. This singular event has cast a shadow on other contacts between Brazil and American linguistics, of which, the one between Jakobson and the Brazilian linguist Joaquim Mattoso Câmara (1904–1970) was much more consequential, at least as far as the implementation of structural linguistics in Brazil and in South America generally during the 1950s and the 1960s is concerned. Mattoso Câmara came to the United States and spent most of his time in New York City (September 1943 till April 1944), where he got exposure to Praguean type structuralism, notably through Jakobson’s lectures he attended at Columbia University and at the École Libre of New York, which had been established by European refugees at the time. He also participated in the first meetings of the Linguistic Circle of New York in 1943 as one of its co-founders. Following his return to Rio de Janeiro, Mattoso Câmara proposed, in 1949, as his doctoral thesis a phonemic description of Brazilian Portuguese. The work was published a few years later, in 1953. His most influential work, Princípios de Lingüística Gerai, first published in 1954, had two more revised and updated editions (1958, 1967) and served to introduce several generations of Brazilian as well as other South American students to structural linguistics during the 1950s and 1960s.