Piri Reis - Kitab-ı Bahriye (Book of Navigation): 1521 and 1525

Kitab-ı Bahriye (Book of Navigation): 1521 and 1525

Piri Reis is the author of the Kitab-ı Bahriye, one of the most famous pre-modern books of navigation, including a world map. Although he was not an explorer and never sailed to the Atlantic, he compiled over twenty maps of Arab, Spanish, Portuguese, Chinese, Indian and older Greek origins into a comprehensive representation of the known world of his era. This work included the recently explored shores of both the African and American continents; on his first World Map of 1513, he imprinted the description "these lands and islands are drawn from the map of Columbus." In his text, he also wrote that he used the "maps drawn in the time of Alexander the Great" as a source, but most likely he had mistakenly confused the ancient Greek geographer Ptolemy of the 2nd century AD with the same named General of Alexander (of six centuries before) since his map is similar with the Jan of Stobnica famous reproduction map of Ptolemy, printed in 1512. The ancient book had been translated in Turkish after a personal order of Mehmed II some decades before. It can be seen that the Atlantic part of the map originates with Columbus because of the errors it contains (such as Columbus’ belief that Cuba was a continental peninsula) since at the time the manuscript was produced, the Spaniards had already been in Mexico for two years. Apart from the maps, the book also contained detailed information on the major ports, bays, gulfs, capes, peninsulas, islands, straits and ideal shelters of the Mediterranean Sea, as well as techniques of navigation and navigation-related information on astronomy, together with information about the local people of each country and city and the curious aspects of their culture. There are thirty legends around the world map, twenty-nine in Turkish and one in Arabic, the latter is giving the date as the Muharrem month of 919 AH (corresponding to the Spring of 1513 AD) but most studies have identified the more probable date of completion as 1521. It was revised in 1524-1525 with additional information and better-crafted charts in order to be presented as a gift to Suleiman I. The revised edition had a total of 434 pages containing 290 maps.

Kitab-ı Bahriye has two main sections, with the first section dedicated to information about the types of storms; techniques of using a compass; portolan charts with detailed information on ports and coastlines; methods of finding direction using the stars; and characteristics of the major oceans and the lands around them. Special emphasis is given to the discoveries in the New World by Christopher Columbus and those of Vasco da Gama and the other Portuguese seamen on their way to India and the rest of Asia.

The second section is entirely composed of portolan charts and cruise guides. Each topic contains the map of an island or coastline. In the first book (1521), this section has a total of 132 portolan charts, while the second book (1525) has a total of 210 portolan charts. The second section starts with the description of the Dardanelles Strait and continues with the islands and coastlines of the Aegean Sea, Ionian Sea, Adriatic Sea, Tyrrhenian Sea, Ligurian Sea, the French Riviera, the Balearic Islands, the coasts of Spain, the Strait of Gibraltar, the Canary Islands, the coasts of North Africa, Egypt and the River Nile, the Levant and the coastline of Anatolia. This section also includes descriptions and drawings of the famous monuments and buildings in every city, as well as biographic information about Piri Reis who also explains the reasons why he preferred to collect these charts in a book instead of drawing a single map, which would not be able to contain so much information and detail.

A century after Piri's death and during the second half of the 17th century, a third version of his book was produced, which left the text of the second version unaffected while enriching the cartographical part of the manuscript. It included additional new large-scale maps, mostly copies of the Italian (from Battista Agnese and Jacopo Gastaldi) and Dutch (Abraham Ortelius) works of the previous century. These maps were much more accurate and depict the Black Sea, which was not included in the original.

Copies of the Kitab-ı Bahriye are found in many libraries and museums around the world:

Copies of the first edition (1521) are found in the Topkapı Palace, the Nuruosmaniye Library and the Süleymaniye Library in Istanbul, the Library of the University of Bologna, the National Library of Vienna, the State Library of Dresden, the National Library of France in Paris, the British Museum in London, the Bodleian Library in Oxford and the Walters Art Museum in Baltimore.

Copies of the second edition (1525) are found in the Topkapı Palace, the Köprülüzade Fazıl Ahmed Paşa Library, the Süleymaniye Library and the National Library of France.