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Cristoforo Colombo of Genoa used several instruments common to late 15th century navigation in his vogayes of discovery. These would have included the rudimentary magnetic compass, the astrolabe (a device invented by the Arabs to measure sun angles), drawing compass, dividers, and parellel rules to mark his position on his charts and of course pen and log books to record all of his navigational observations.

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16y ago

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