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What Greek invention that aided naval travel did the Muslims inprove
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Nov 9, 2016
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What Greek invention that aided naval travel did the Muslims inprove
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Christoph Lupprich
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This was astrolabe; an instrument to predict the position of the stars, that could also be used to predict t one's position. The compass was invented in China.
Robin Klose
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Nov 15, 2016
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