
The enigmatic Ottoman chart
The image of the Piri Rei's map was scanned from the frontpiece of a first edition of Hapgood's Maps of the Ancient Sea Kings. It is included here for non-profit archival and research purposes only.
Most theories about ancient unknown civilizations are based on absolutely no physical evidence, usually just hearsay and speculation. What really would shake the basis of our knowledge of history would be an actual artifact. This probably wouldn't be something spectacular like finding a sunken city in the Atlantic, or armor-piercing bullets embedded in a dinosaur skeleton. It would probably be something that only an expert in the field would recognize as anomalous.