Occasional Publication


Book Description







The Enigma of the Origin of Portolan Charts


Book Description

The sudden appearance of portolan charts, realistic nautical charts of the Mediterranean and Black Sea, at the end of the thirteenth century is one of the most significant occurrences in the history of cartography. Using geodetic and statistical analysis techniques these charts are shown to be mosaics of partial charts that are considerably more accurate than has been assumed. Their accuracy exceeds medieval mapping capabilities. These sub-charts show a remarkably good agreement with the Mercator map projection. It is demonstrated that this map projection can only have been an intentional feature of the charts’ construction. Through geodetic analysis the author eliminates the possibility that the charts are original products of a medieval Mediterranean nautical culture, which until now they have been widely believed to be.







Ships on Maps


Book Description

Renaissance map-makers produced ever more accurate descriptions of geography, which were also beautiful works of art. They filled the oceans Europeans were exploring with ships and to describe the real ships which were the newest and best products of technology. Above all the ships were there to show the European conquest of the seas of the world.




Civil War Maps


Book Description







Routledge Revivals: Medieval Italy (2004)


Book Description

First published in 2004, Medieval Italy: An Encyclopedia provides an introduction to the many and diverse facets of Italian civilization from the late Roman empire to the end of the fourteenth century. It presents in two volumes articles on a wide range of topics including history, literature, art, music, urban development, commerce and economics, social and political institutions, religion and hagiography, philosophy and science. This illustrated, A-Z reference is a cross-disciplinary resource and will be of key interest not only to students and scholars of history but also to those studying a range of subjects, as well as the general reader.




Piri Reis Map of 1513


Book Description

One of the most beautiful maps to survive the Great Age of Discoveries, the 1513 world map drawn by Ottoman admiral Piri Reis is also one of the most mysterious. Gregory McIntosh has uncovered new evidence in the map that shows it to be among the most important ever made. This detailed study offers new commentary and explication of a major milestone in cartography. Correcting earlier work of Paul Kahle and pointing out the traps that have caught subsequent scholars, McIntosh disproves the dubious conclusion that the Reis map embodied Columbus's Third Voyage map of 1498, showing that it draws instead on the Second Voyage of 1493-1496. He also refutes the popular misinterpretation that Reis's depictions of Antarctica are evidence of either ancient civilizations or extraterrestrial visitation. McIntosh brings together all that has been previously known about the map and also assembles for the first time the translations of all inscriptions on the map and analyzes all place-names given for New World and Atlantic islands. His work clarifies long-standing mysteries and opens up new ways of looking at the history of exploration.