Potentially one of the most significant finds of modern time as it is clearly dated 1513 AD and shows both the coastlines of the American and debatably, the Antarctic coastline (which has been frozen over since around 4,000 BC). This map alters all previous conceptions of our pre-historic ancestors abilities. The ‘Piri-Reis’ map is one of several ‘portellano’s’ which appear to have a geometric basis of unknown provenance. It has several interesting features which deserve investigation, such as:-
The map has pre-Columbian provenance.
The map shows the coastline of America.
The map shows accurate use of Longitude and Latitude.
The map-builders used ‘Spherical geometry’.
The map centres at the junction of the 23.5˚ parallel (Tropic of cancer), and the longitude of Alexandria.