Treatise on the Astrolabe

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Treatise on the Astrolabe

work by Chaucer

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history of navigation

In navigation: The lodestone and the compass card
…by Geoffrey Chaucer in his Treatise on the Astrolabe (1391). It also has been said that the navigators of Amalfi, Italy, first expanded the number of compass points to 32, and they may have been the first to attach the card to the needle.
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