Piri Reis Map

A 1513 map that seems to show Antarctica's coast — four centuries before its discovery, ice-free.

The 1513 map, rediscovered at Topkapi in 1929: an Ottoman admiral's compilation citing twenty source charts including 'a map of Columbus.' The controversy is its southern landmass — Hapgood's school reads an ice-free Antarctic coast surveyed by a lost seafaring culture; cartographic historians read a speculative Terra Australis or a bent South American coast, noting the map's own annotations. The USAF's 1960 letter to Hapgood (Ohlmeyer, 8th Reconnaissance Squadron) agreeing the profile matched seismic data under the ice is genuine correspondence — the file's one uncomfortable official artifact. Connects Hapgood's crust-shift thesis and the ancient-maps thread.