The Piri Reis Map
The Piri Reis map is a famous pre-modern world map compiled in 1513 from military intelligence by the Ottoman-Turkish admiral and cartographer Piri Reis. The half of the map which survives shows the western coasts of Europe and North Africa and the coast of Brazil with reasonable accuracy. Various Atlantic islands including the Azores and Canary Islands are depicted, as is the mythical island of Antillia and possibly Japan. The map has been used in pseudo-scholarship to claim an ancient knowledge of an ice-free Antarctica, transmitted either from extra-terrestrials or an Ice Age civilization, but the region in question better fits Patagonia. The historical importance of the map lies in its demonstration of the extent of Portuguese exploration of the New World by approximately 1510, and in its claim to have used Columbus's maps, otherwise lost, as a source.
The map is the extant western third of a world map drawn on gazelle skin, with dimensions reported as 90 cm x 63 cm, 86 cm x 60 cm, 90 cm x 65 cm, 85 cm x 60 cm, 87 cm x 63 cm, and 86 cm x 62 cm. The surviving portion primarily details the western coast of Africa and the eastern coast of South America. The map was signed by Piri Reis, an Ottoman-Turkish admiral, geographer and cartographer, and dated to the month of Muharram in the Islamic year 919 AH, equivalent to 1513 CE It was presented to Ottoman Sultan Selim I in 1517. In the map's legend, Piri inscribed that the map was based on about twenty charts and mappae mundi. According to Piri, these maps included eight Ptolemaic maps constructed during the era of Alexander the Great, an Arabic map of India, four newly drawn Portuguese maps of their recent discoveries, and a map by Christopher Columbus of the western lands. From Inscription 6 on the map:
From eight Jaferyas of that kind and one Arabic map of Hint (India), and from four newly drawn Portuguese maps which show the countries of Sint (modern day Pakistan), Hint and Çin (China) geometrically drawn, and also from a map drawn by Qulūnbū (Columbus) in the western region, I have extracted it. By reducing all these maps to one scale this final form was arrived at, so that this map of these lands is regarded by seamen as accurate and as reliable as the accuracy and reliability of the on the aforesaid maps.
There is some scholarly debate over whether the 20 charts and mappaemundi in Piri's inscriptions includes the eight Ptolemaic maps, the four Portuguese maps, the Arabic map and the Columbus map. From one perspective, the number of charts and mappaemundi used by Piri equals 20 while in the other, it could mean a total of 34 Some have claimed that the source maps were found in the ancient Library of Alexandria, based on Piri's allusions to Alexander the Great, the founder of Alexandria, Ptolemy I, who ruled Alexandria in the 4th century BCE, and Claudius Ptolemy, the Greek geographer and cartographer who lived in Alexandria during the second century CE
The map was discovered in 1929 while Topkapı Palace was being converted into a museum. It drew immediate attention as it was one of the earliest maps of America, and the only 16th century map that showed South America in its proper longitudinal position in relation to Africa. Furthermore, Piri's claim that he had based some portions of the map on a map drawn by Columbus also drew special attention, as geographers had spent several centuries unsuccessfully searching for a "lost map of Columbus" that was supposedly drawn while he was in the West Indies. After reading about the map's discovery in the The Illustrated London News, United States Secretary of State Henry L. Stimson contacted the United States Ambassador to Turkey Charles H. Sherrill and requested that an investigation be launched to find the Columbus source map, which he believed may have been in Turkey. In turn, the Turkish government complied with Stimson's request, but they were unsuccessful in locating any of the source maps.
The Piri Reis map is currently located in the Library of the Topkapı Palace in Istanbul, Turkey, but is not usually on display to the public.
The map was depicted on the reverse of the Turkish 10 million lira banknote of 1999-2005 and of the 10 new lira banknote of 2005-2009.
Charles Hapgood
Charles Hapgood began studying the map in the middle of the 20th century and published the book Maps of the Ancient Sea Kings in 1966.
Hapgood claims this and other maps support a theory of global exploration by a pre-classical undiscovered civilization. He supports this with an analysis of the mathematics of ancient maps and of their accuracy, which he says surpassed instrumentation available at the time of the map's drafting.
Hapgood argued that owing to the map being assembled from components, the Caribbean section was rotated nearly 90º from the top of South America. He attributed this to either copying from a polar projection, or to fit in the space available by hinging the map at that location and giving it an "alternate north", of which other examples are known in maps of the era.
Charles Hapggod, in 1953, wrote a book called "Earth's shifting crust: a key to some basic problems of earth science", where he made up a theory to explain how Antarctic had been ice-free until year 4000 BC .
The theory summing up is as follows:
The reason Antarctic was ice-free, and therefore much warmer, it is to be found in the fact that, at one time, its location wasn't the south pole. It was located approximately 2000 miles further north. Hapgood says this "would have put it outside the Antarctic Circle in a temperate or cold temperate climate
In 1953, a Turkish naval officer sent the Piri Reis map to the U.S. Navy Hydrographic Bureau. To evaluate it, M.I. Walters, the Chief Engineer of the Bureau, called for help Arlington H. Mallery, an authority on ancient maps, who had previously worked with him.
After a long study, Mallery discovered the projection method used. To check out the accuracy of the map, he made a grid and transferred the Piri Reis map onto a globe: the map was totally accurate. He stated that the only way to draw map of such accuracy was the aerial surveying: but who, 6000 years ago, could have used airplanes to map the earth??
The Hydrographic Office couldn't believe what they saw: they were even able to correct some errors in the present days maps!!
The precision on determining the longitudinal coordinates, on the other hand, shows that to draw the map it was necessary to use the spheroid trigonometry, a process supposedly not know until the middle of 18th century.
Hapgood has proved that the Piri Re'is map is plotted out in plane geometry, containing latitudes and longitudes at right angles in a traditional "grid"; yet it is obviously copied from an earlier map that was projected using spherical trigonometry! Not only did the early map makers know that the Earth was round, but they had knowledge of its true circumference to within 50 miles!
On 6th July 1960 the U. S. Air Force responded to Prof. Charles H. Hapgood of Keene College, specifically to his request for an evaluation of the ancient Piri Reis Map:
6, July, 1960
Subject: Admiral Piri Reis Map
TO: Prof. Charles H. Hapgood
Keene College
Keene, New Hampshire
Dear Professor Hapgood,
Your request of evaluation of certain unusual features of the Piri Reis map of 1513 by this organization has been reviewed.
The claim that the lower part of the map portrays the Princess Martha Coast of Queen Maud Land, Antarctic, and the Palmer Peninsular, is reasonable. We find that this is the most logical and in all probability the correct interpretation of the map.
The geographical detail shown in the lower part of the map agrees very remarkably with the results of the seismic profile made across the top of the ice-cap by the Swedish-British Antarctic Expedition of 1949.
This indicates the coastline had been mapped before it was covered by the ice-cap.
The ice-cap in this region is now about a mile thick.
We have no idea how the data on this map can be reconciled with the supposed state of geographical knowledge in 1513.
Harold Z. Ohlmeyer Lt. Colonel, USAF Commander
Antarctica
Scholars believe the resemblance of the coastline to the actual coast of Antarctica to be tenuous. For centuries before the actual discovery of Antarctica, cartographers had been depicting a massive southern landmass on global maps based on the theoretical assumption by some that one must exist, if only to balance the landmass of the North. The landmass in question on the Piri Reis map may be a continuation of this tradition, with its resemblance to the actual coastline being coincidental. It was widely believed that South America and, once its northern coastline was discovered, Australia, must be joined to this land mass, which was thought to be very much bigger than the real Antarctica. This theoretical southern continent, the Great Southern Land or Terra Australis Incognita (literally Unknown Southern Land), in various configurations, was usually shown on maps until the eighteenth century. An alternate view is that the "Antarctic" coast is simply the eastern coastline of South America skewed to align east-west due to the inaccurate measurement of longtitude or to fit it on the page.
Hapgood suggests that the Antarctic section of the map was copied at an incorrect scale to the rest of the map and resulted in the distortion and enlargement of the continent on several ancient maps. This would explain why there is no waterway between South America and Antarctica. He suggests several points of continuity between the Piri Reis Map and modern maps of the continent below the ice caps. Since the Antarctic continent was not officially sighted until 1820 and its full coastline was not known until much later, this claim, if true, would require major revisions to the history of exploration, settlement, evolution, and technological advancements of the time.
tion and giving it an "alternate north", of which other examples are known in maps of the era
In fact Piri Reis himself admitted he based his map on way older charts; and those older charts had been used as sources by others who have drawn different maps still of great precision.
Impressive is the "Dulcert's Portolano", year 1339, where the latitude of Europe and North Africa is perfect, and the longitudinal coordinates of the Mediterranean and of the Black sea are approximated of half degree.
An even more amazing chart is the "Zeno's chart", year 1380. It shows a big area in the north, going up till the Greenland; Its precision is flabbergasting. "It's impossible" says Hapgood "that someone in the fourteenth century could have found the exact latitudes of these places, not to mention the precision of the longitudes..."
Another amazing chart is the one drawn by the Turkish Hadji Ahmed, year 1559, in which he shows a land stripe, about 1600 Km. wide, that joins Alaska and Siberia. Such a natural bridge has been then covered by the water due to the end of the glacial period, which rose up the sea level.
Oronteus Fineus was another one who drew a map of incredible precision. He too represented the Antarctic with no ice-cap, year 1532.
There are maps showing Greenland as two separated islands, as it was confirmed by a polar French expedition which found out that there is an ice cap quite thick joining what it is actually two islands.