"Ample evidence suggests that this landmass represents Christopher Columbus’s discoveries of the north coast of Cuba on his first voyage and the south coast of Cuba on his second voyage, voyages on which he claims to have discovered Asia."
Donald L. McGuirk (2014) The Presumed North America on the Waldseemüller World Map (1507): A Theory of Its Discovery by Christopher Columbus, Terrae Incognitae, 46:2, 86-102, DOI: https://doi.org/10.1179/0082288414Z.00000000034 #OpenAccess #OA #Journal #Article #Map #Maps #Cartography #Columbus #America #Asia #Cuba
@bibliolater Don has changed/updated his ideas on this topic. See
McGuirk, Donald L., Jr.; McIntosh, Gregory C.
Depicting Cuba, Not North America: Solving the Enigma of America on Early Maps
Terrae Incognitae, 2023 vol. 55(1) pp. 4–64