Word: caravels
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Dates: during 1950-1959
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...days after the three-caravel fleet eased west from the Canary Islands, the scientific mysteries of a strange watery world began to crop up. On Sept. 13 the compass needles pointed 3½° west of the North Star. Christopher Columbus and his jittery mariners had never before seen this westerly shift. But Columbus guessed an explanation: the North Star moves.* This was a notable contribution to the science of navigation and it was the expedition's first triumph over the mysteries that dogged the voyage...