The 1964–1965 public debate over the Piri Reis map

Record summary

The surviving fragment of Piri Reis’s 1513 map became especially prominent in twentieth-century debates when writers claimed that it depicted Antarctica before its modern discovery. The controversy intersects maritime history, Ottoman compilation practices, lost-source theories, and apocryphal claims of ancient polar knowledge. Researchers can compare the map with portolan conventions, source charts, and sixteenth-century geography. The Antarctic identification is disputed and is generally rejected by specialists, who emphasize conventional South American and early-modern cartographic explanations.