“ The light-shaded Porcupine Bank can easily be seen directly west of Ireland, in exactly the same place, and roughly the same size, as the legendary Hy-Brasil on the portolan charts. The entire bank li… Graham Hancock
“ Even if we admit that running-survey and compass techniques somehow being used on ships to produce sea-charts as early as the thirteenth century (which most historians of science would rule out) we s… Graham Hancock
