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Quote by Ken Jennings

“Columbus’s fateful voyage was inspired by his study of a map by Paolo Toscanelli. But there was also the 1854 cholera outbreak in London, which killed hundreds of people until a physician, John Snow, drew a map demonstrating that a single contaminated water pump was the source of the illness, thereby founding the science of epidemiology. There was the 1944 invasion at Normandy, which succeeded only because of the unheralded contribution of mapmakers who had stolen across the English Channel by night for months before D-Day and mapped the French beaches.* Even the moon landing was a product of mapping. In 1961, the United States Geological Survey founded a Branch of Astrogeology, which spent a decade painstakingly assembling moon maps to plan the Apollo missions. The Apollo 11 crew pored over pouches of those maps as their capsule approached the lunar surface, much as Columbus did during his voyage. It seems that the greatest achievements in human history have all been made possible by the science of cartography.”

Quote by Ken Jennings

Book:Maphead: Charting the Wide, Weird World of Geography Wonks
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Maphead: Charting the Wide, Weird World of Geography Wonks

This book delves into the world of geography enthusiasts, known as 'mapheads,' exploring their passion for maps and geography-related activities. It provides insights into the various aspects of map collecting, trivia, and the cultural significance of maps in everyday life. more

Author

Ken Jennings
Ken Jennings

Ken Jennings, born on May 23, 1974, is a renowned American author. He gained widespread popularity for his exceptional performance on the television game show 'Jeopardy!', where he achieved remarkable success. Jennings' writing spans various fields, including science, history, and popular culture. more

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“Even if we admit that running-survey and compass techniques were somehow being used on ships to produce sea-charts as early as the thirteenth century (which most historians of science would rule out) we still come against the unexplained enigma of the miraculous and fully formed de novo appearance of the Carta Pisane. As we've seen, not a single chart pre-dates it that demonstrates in any way the gradual build-up of coastal profiles across the whole extent of the Mediterranean that must have occurred before a likeness as perfect as this could have been resolved. It is possible, of course, through the vicissitudes of history, that all the evidence for the prior evolution of portolans before the Carta Pisane has simply been lost. If that were the case, however -- in other words if the Carta Pisane is a snapshot of a certain moment in the development of an evolving genre of maps, and if we accept that all earlier 'snap-shots' have been lost, wouldn't we nevertheless expect that such an 'evolving genre' would have continued to evolve after the date of the earliest surviving example? Whether we set the date of the Pisane between 1270 and 1290 [...] or a little later -- between 1295 and 1300 -- as other scholars have argued, we've seen that there was no significant evolution afterwards. Now kept in the Bibliothèque Nationale in Paris, the enigmatic Pisane is an unsigned chart and scholars have no idea who the cartographer might have been.”

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“If the normal portolano is indeed derived from the lost atlas of Marinus of Tyre, then it follows that other high-quality maps of regions much further afield than the Mediterranean and the Black Sea, and indeed a world map, might also have been preserved by the Arabs -- for we know from Ptolemy's testimony that other Marinus maps, including a world map, did once exist. It will therefore do no harm to keep an open mind to the possibility that the portolan world maps that began to appear during the century after the Carta Pisane, might also have been influenced by earlier 'Tyrian sea-fish' maps of Phoenician origin. Christopher Columbus, whose passionate belief in lands across the Atlantic lead to his 'discovery' of the New World, seems to hint at a Phoenician connection when he describes one of the inspirations for his journey: 'Aristotle in his book On Marvellous Things reports a story that some Carthaginian merchants sailed over the Ocean Sea to a very fertile island ... this island some Portuguese showed me on their charts under the name Antilia.' Antilia first appears on a portolan chart of 1424. It is a mysterious presence there, a riddle.”

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“Though [Marco] Polo himself states frankly that he has never visited Japan -- and thus that what he has to say about it is second-hand and perhaps inaccurate -- the notion of the mysterious island kingdom of Cipango that he planted in European consciousness at the end of the thirteenth century was later one of several powerful influences that spurred Christopher Columbus forward in his crossings of the Atlantic at the end of the fifteenth century. This was so because Columbus -- underestimating the circumference of the earth and knowing nothing of the existence of the Americas or of the Pacific Ocean -- believed that he could reach Cipango, and thence the Chinese mainland beyond, by sailing directly westwards across the Atlantic from Europe. Columbus is also likely to have calculated that Cipango would be reached after only a relatively short journey towards the west -- for he had read Marco Polo, who describes Cipango, erroneously, as lying 'far out to sea' fully 1500 miles to the east of the Chinese mainland (the true distance is nowhere much more than 500 miles).”

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“1. Ceylon was believed by Marco Polo to have been one-third larger in the past than it had become by his day -- with extensive lands to the north of the present island said to have been 'submerged under the sea'. In the process its circumference was reduced in size from 3600 units of measurement to 2400 units of measurement, i.e. by one-third. 2. Maps were in use amongst mariners in the Indian Ocean when Marco Polo was there -- either mappamundi or mariners' charts depending on the translation -- which continued to show the one-third larger, antediluvian Ceylon. On the first of the two points above -- the one-third reduction in the size of Sri Lanka by flooding -- we cannot deny, having studied the inundation history of south India and Sri Lanka in earlier chapters, that the tradition which Marco Polo here preserves and passes down to us is essentially correct when set within the time-frame of the end of the last Ice Age. Since approximately 7700-6900 years ago, when the last remnants of its landbridge to south India were inundated, Glenn Milne's maps suggest that there have been no significant changes in Ceylon's size. Prior to 7700 years ago the picture is very different, and as we go back through 8900 years ago, 10,600 years ago, 12,400 years ago, and 13,500 years ago, we note a progressive enlargement of Sri Lanka, exclusively in the north around the landbridge to south India, resulting from the lowered sea-level of those epochs. At its greatest extent the enlargement is of the order of one-third.”

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“Traditions, with all their folksy redolences, are relatively safe matters for scholars to speculate about. Maps and nautical charts on the other hand -- especially accurate, sophisticated maps of the kind used by Guzarate to chart Vasco da Gama's course from Malindi to Calicut in 1498 -- are quite another matter. If maps have indeed come down to us containing recognizable representations of Ice Age topography -- as arguably may be the case with the depictions of India and of the long-submerged Sundaland peninsula by Cantino and Reinal and with the depiction of the 'Golden Chersonese' by Ptolemy -- then prehistory cannot be as it has hitherto been presented to us. If they are what they seem, such maps mean a lost civilization. Nothing more. Nothing less.”

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“The suspicion that European travellers in the Indian Ocean in the sixteenth century may from time to time have stumbled across charts and maps containing the remnants of a lost geography (perhaps even the maps of Marinus of Tyre, said to have been superior to those of Ptolemy) is intriguingly enhanced by the first of Alfonso de Albuquerque's two letters. It introduces a 'piece of a map' that Albuquerque has acquired in his travels in the Indian Ocean and that he is sending to King Manuel. The fragment, he explains, is not the original but was 'traced' by Francisco Rodrigues from: 'a large map of a Javanese pilot, containing the Cape of Good Hope, Portugal and the land of Brazil, the Red Sea and the Sea of Persia, the Clove islands [effectively a world map, therefore], the navigation of the Chinese and the Gores [an unidentified people, thought by some to be the Japanese, or the inhabitants of Taiwan and the Ryukyu archipelago] with their rhumbs and direct routes followed by the ships, and the hinterland, and how the kingdoms border on each other. It seems to me, Sir, that this was the best thing I have ever seen, and Your Highness will be very pleased to see it; it had the names in Javanese writing, but I had with me a Javanese who could read and write.”

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“The light-shaded Porcupine Bank can easily be seen directly west of Ireland, in exactly the same place, and roughly the same size, as the legendary Hy-Brasil on the portolan charts. The entire bank lies between 40 and 200 metres beneath the surface, and most of it (probably more than 600 square kilometres) would have been exposed at the Last Glacial Maximum, 21,000 years ago.”

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“In 1512, in handwritten notes on an enigmatic map that he had prepared showing the newly discovered Americas, the Turkish Admiral Piri Reis offered an intriguing answer to all these questions -- at any rate for the particular case of Christopher Colombus, the most recent and most renowned of the ancient Atlantic dreamers. Piri's note, one of many on the same map, is written over the interior of Brazil: 'Apparently a Genoese infidel, by the name of Columbus was the one who discovered these parts. This is how it happened: a book came into the hands of this Colombus from which he found out that the Western Sea [i.e. the Atlantic] has an end, in other words that there is a coast and islands on its western side with many kinds of ores and gems. Having read this book through, he recounted all these things to the Genoese elders and said, 'Come, give me two ships, and I shall go and find these places.' They said, 'Foolish man, is there an end to the Western Sea? It is filled with the mists of darkness.”

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“To have followed the speculative vision of Behaim in his famous globe, or of others like him, would have been disastrous, even though their work represents the cream of fifteenth-century mapmaking and was known to Columbus. Indeed, as one commentator has observed, if his chart had been based on the Behaim scenario, 'Columbus could not even have known of the whereabouts of the New World, much less discover it.' Yet not only does he seem to have known where he was going but, on some accounts, when he was going to get there: 'Now and then Pinzón and Columbus consult and deliberate -- mutually discuss their route. The map or chart passes not infrequently from the one captain to the other; the observations and calculations as to their position are daily recorded, their conduct and course for the night duly agreed upon. On the eve of their due arrival Columbus issues the order to stay the course of the armada, to shorten sail, because he knew that he was close to the New World and was afraid of going ashore during the obscurity of the night ... How does he know the place and the hour? 'His Genius' says the Columbus legend in explanation. But the Map? The critics will ask, what did it contain? Whose was it? What did that map contain that was so frequently passed from Columbus to Pinzón during the voyage?' I've presented my case that what the map may have contained was an accurate but ancient, and indeed antediluvian, representation of the coast and islands of Central America, notably the north-south-oriented Great Bahama Bank island, which Columbus -- no less ignorant than any of his contemporaries about the existence of the Americas -- took to be an accurate map of part of the coast of China and the islands of Japan.”

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“It is Professor Fuson's view that Chinese charts of Taiwan and Japan were the source of the 1424 portrayal of Antilia and Satanaze. He makes a very persuasive case that such charts are likely to have originated from the seven spectacular voyages of discovery made by the famous Ming admiral Cheng Ho between 1405 and 1433. [...] Much suggests, however, that Robert Fuson is correct to deduce that the charts of Taiwan and Japan that somehow found their way into the hands of Zuane Pizzagano in Venice in 1424 must have originated from the voyages of Cheng Ho. Yet there is a problem. [...] Antilia and Satanaze on the 1424 chart don't show Taiwan and Japan as they looked in the time of Cheng Ho, but rather as they looked approximately 12,500 years ago during the meltdown of the Ice Age. Is it possible that Cheng Ho, too, like Columbus, was guided in his voyages by ancient maps and charts, come down from another time and populated by the ghosts of a drowned world?”

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