We do not know whether [Hipparchus] drew maps--perhaps he did--but the truth is that in his day he could not possibly have applied his projections to the globe because the necessary data, in the form of correct findings of latitudes and longitudes of a very large number of places over the known areas of the earth, were not available. This was the weakness of all Greek cartographic science. In Greek times mathematics was in advance of mechanical instrumentation: There was no instrument for easily and correctly determining the longitude of places. However, the Piri Re'is and the other maps we went on to study, seemed to suggest that such an instrument or instruments had once existed, and had been used by people who knew very closely the correct size of the earth. Moreover, it looks as if this people had visited most of the earth. They seem to have been quite well acquainted with the Americas, and to have mapped the coasts of Antarctica.
Other Quotes by "Charles H. Hapgood"
The evidence presented by the ancient maps appears to suggest the existence in remote times, before the rise of any of the known cultures, of a true civilization, of a comparatively advanced sort, which either was localized in one area but had worldwide commerce, or was, in a real sense, a worldwide culture. This culture, at least in some respects, may well have been more advanced than the civilizations of Egypt, Babylonia, Greece, and Rome. In astronomy, nautical science, mapmaking and possibly ship-building, it was perhaps more advanced than any state of culture before the 18th Century of the Christian Era. It was in the 18th Century that we first developed a practical means of finding longitude. It was in the 18th Century that we first accurately measured the circumference of the earth. Not until the 19th Century did we begin to send out ships for purposes of whaling or exploration into the Arctic or Antarctic Seas. The maps indicate that some ancient people may have done all these things.
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