CONVENTIONAL THEORY of inconsequential transoceanic contact with America before either Columbus, Leif Ericson, Brendan, circumpolar Red Paint People, Shan hai jing explorers, Hwui Shan, Madoc of Wales, or Mandinga Emperor Abu Bakr II (whichever discussant’s 5th-grade teacher happened to know enough to recognize) retreats in ever more frantic epicycles which may work to the good […]