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Portuguese-Speaking Diaspora

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Arte de navegar

Simão de Oliveira. Arte de navegar / composta por Simaõ de Oliueira natural da cidade de Lisboa. Dirigida a Dom Pedro de Castilho Bispo de Leiria, Inquisidor mòr, & visorey os Reynos de Portugal. Losboa [check: Lisboa]: por Pedro Crasbeeck, 1606. [Art of navigating, composed by Simão de Oliveira, born in the city of Lisbon. Addressed to Dom Pedro de Castilho, Bishop of Leiria, major inquisitor and viceroy in the Portuguese realms.]

Simão de Oliveira was a mathematician and cosmographer. His Arte de navegar is a primer on cosmography and maritime travel, consisting of explanations of technical terminology and the instruments used in navigation. Books three and four in the volume describe the construction and uses of the astrolabe, the quadrant, and other navigational devices that enabled the Portuguese to establish their empire.