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The article presents the author's views on an article on the works of Italian explorer Christopher Columbus. Topics discussed include his works as a secret agent of Portuguese King John II, theories of historian Mascarenhas Barreto on his works, principles of methodology and epistemology of Columbus' works. It further discusses criticism of his historic documents, his positivist methodology, positivists in 19th and 20th century, historic sources of his works, its ideological conviction and his thesis on positivism.