In the year 1486 a council of learned professors of geography, mathematics, and all branches of science, erudite friars, accomplished bishops, and other dignitaries of the Church, were seated in the vast arched hall of the old Dominican convent of Saint Stephen in Salamanca, then the great seat of learning in Spain. They had met to hear a simple mariner, then standing in their midst, propound and defend certain conclusions at which he had arrived regarding the form and geography of the earth, and the possibility, nay, the certainty, that by sailing west, the unknown shores of Eastern India could be reached. Some of his hearers declared it to be grossly presumptuous in an ordinary man to suppose, after so many profound philosophers and mathematicians had been studying the world, and so many able navigators had been sailing about it for years past, that there remained so vast a discovery for him to make. Some cited the books of the Old Testament to prove that he was wrong, others the explanations of various reverend commentators. Doctrinal points were mixed up with philosophical discussions, and a mathematical demonstration was allowed no weight if it appeared to clash with a text of Scripture or comment of one of the fathers. Although Pliny and the wisest of the ancients had maintained the possibility of an antipodes in the southern hemisphere, these learned gentlemen made out that it was altogether a novel theory. Others declared that to assert there were inhabited lands on the opposite side of the globe would be to maintain that there were nations not descended from Adam, as it would have been impossible for them to have passed the intervening ocean, and therefore discredit would be thrown on the Bible. Again, some of the council more versed in science, though admitting the globular form of the earth, and the possibility of an opposite habitable hemisphere, maintained that it would be impossible to arrive there on account of the insupportable heat of the torrid zone; besides which, if the circumference of the earth was as great as they supposed, it would require three years to make the voyage. Several, with still greater absurdity, advanced as an objection that should a ship succeed in reaching the extremity of India, she could never get back again, as the rotundity of the globe would present a kind of mountain up which it would be impossible for her to sail even with the most favourable wind. The mariner replied in answer to the scriptural objection that the inspired writers were not speaking technically as cosmographers, but figuratively, in language addressed to all comprehensions, and that the commentaries of the fathers were not to be considered as philosophical propoundings, which it was necessary either to admit or refute.