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which date it is claimed that these people
                                         were studying astronomy.
                                            (3) In the Odyssey, Calypso directs Odysseus,
                                         in accordance with Phoenician rules for nav-
                                         igating the Mediterranean, to keep the Great
                                         Bear ”ever on the left as he traversed the
                                         deep” when sailing from the pillars of Her-
                                         cules (Gibraltar) to Corfu. Yet such a course
                                         taken now would land the traveller in Africa.
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