Maps of the Ancient Sea Kings

Hapgood's thesis: someone charted the world before history began, and we inherited copies.

Hapgood's 'Maps of the Ancient Sea Kings' (1966) argued portolan accuracy implied a lost surveying civilization; the Piri Reis Antarctica reading is its centerpiece. Cartographic historians' documented response: portolan accuracy is explained by accumulated Mediterranean seafaring data, the 'Antarctic' coasts fail point-by-point correspondence, and Hapgood's grid analyses involved generous transformations. The node holds the thesis, its strongest artifact (the USAF letter), and the standard rebuttals — the ancient-knowledge thread's most respectable and most answered entry.